Attack Boost

The Attack Boost is a feature of some buildings and items to increase the attack value of either the attacking units or of the defensive units by a certain percentage.

The attack boost for the attacking army is counted separately from the defending army. In both cases it only benefits the attack value. To increase the defensive stats of the attacking or defending army players may use the Defense Boost.

When having multiple attack boosts, either from buildings or from items, those percentages are stacked. Then the unit's base attack value is increased by the result.

Attack Boost Providers for Attacking Army

The following sources increase the attack values of the player's troops when they are used for attacking. This applies for attacking other players in the neighborhood, for attacking other players in the PvP Arena, for attacking in the guild expedition encounters, for attacking on GvG Maps, for fights on Continent Maps, for fights in the Daily Challenges or for fights in the Guild Battlegrounds.

Great Buildings

Some of the Great Buildings offer a Military Boost or Advanced Tactics bonus, which beside increasing the attack value also increases the defense value of the attacking units.

	Building	Military Boost and Advanced Tactics
	Castel del Monte	Provides Military Boost Provides +3% attack boost at level 1 and +30% attack boost at level 10. After level 10 +1% attack boost is gained after every second level.
	Cathedral of Aachen	Provides Military Boost Provides +3% attack boost at level 1 and +30% attack boost at level 10. After level 10 +1% attack boost is gained after every second level.
	Statue of Zeus	Provides Military Boost Provides +3% attack boost at level 1 and +30% attack boost at level 10. After level 10 +1% attack boost is gained after every second level.
	Terracotta Army	Provides Advanced Tactics Provides +2% attack boost at level 1 and +20% attack boost at level 10. After level 10 +1% attack boost is gained after every second level. What makes the Terracotta Army different is that the stats of the defending army are also increased by the same amount.
	Saturn VI Gate CENTAURUS	Provides Military Boost Provides +4% attack boost at level 1 and +40% attack boost at level 10. After level 10 +4% attack boost is gained after every second level.
	Saturn VI Gate HYDRA	Provides Advanced Tactics Provides +3% attack boost at level 1 and +30% attack boost at level 10. After level 10 +3% attack boost is gained after every second level.

Special Buildings

	Building	Attack Boost
	Abandoned Asylum	Provides from +16% to +24% attack boost on the highest level, depending on the building's age.
	Altar of Artemis	Provides from +3% to +7% attack boost depending on the building's age. Altar of Artemis is one of the six options when reaching level 5 with the Altar Garden.
	Animal Crossing	Provides from +12% to +22% attack boost on the highest level, depending on the building's age.
	The Appleton Cottage	Provides from +5% to +13% attack boost depending on the building's age. The Appleton Cottage is one of the three options when reaching level 7 with the September Cottage.
	Archdruid Hut	On level 10, provides from +12% to +22% attack boost depending on the building's age. Also provides defense boost.
	Bistro	Provides from 16% to 25% attack boost depending on the building's age. The Bistro is one of the two options when reaching level 11 with the Pergola. Also provides defense boost.
	Botanical Rotunda	Provides from +5% to +10% attack boost depending on the building's age.
	Carousel	Provides from +4% to +8% attack boost depending on the building's age. In addition to attack boost the Carousel also provides the same amount of defense boost.
	Cartographer's House	Provides from +10% to +18% attack boost depending on the building's age.
	Celtic Farmstead	Provides from +7% to +38% attack boost depending on the building's level and age.
	The Charcoal Express	Provides from 10% to 24% attack boost depending on the building's age. The Charcoal Express is one of the three options when reaching level 9 with the Winter Train.
	Checkmate Square	Provides from 5% to +11% attack boost depending on the building's age.
	Classical Garden Pool	Provides +5% attack boost when adjacent to two other different buildings from the Classical Garden Set. The boost values remain constant through the ages.
	Colossus	Starts providing attack boost when upgraded to level 4 or more. Gives from 3% to +15% attack boost depending on the building's level and the age.
	Contestants' Estate	Provides +3% attack boost. The boost values remain constant through the ages.
	Cypress Pass	Provides +8% attack boost when chained to a Terracotta Vineyard. The boost value remains constant through the ages.
	Daunting Tower	Limited building Provides 50% attack boost to the attacking army for the duration of 24 hours.
	Deadman's Boathouse	Provides from +8% to +17% attack boost, depending on the building's age. In addition it also provides a defense boost for the defending army.
	Dining Car	Provides +4% attack boost when chained to a Winter Train. The boost value remains constant through the ages.
	Drummer School	Provides +4% attack boost. The boost value remains constant through the ages.
	Eagle Montain	Provides from +14% to +26% attack boost, depending on the building's age. In addition it also provides a defense boost for the attacking army.
	Elephant Fountain	Provides from +2% to +9% attack boost when adjacent to at least four other buildings from the Indian Fountain Set. The boost value depends on the building's age.
	The Elephant's Citadel	Provides +12% attack boost. The boost value remains constant through the ages. The Elephant's Citadel is one of the three options when upgrading The Great Elephant to level 8.
	The Elephant's Bazaar	Provides +8% attack boost. The boost value remains constant through the ages. The Elephant's Bazaar is one of the three options when upgrading The Great Elephant to level 8.
	The Elephant's Royalty	Provides +10% attack boost. The boost value remains constant through the ages. The Elephant's Royalty is one of the three options when upgrading The Great Elephant to level 8.
	Face of the Ancient	Provides +3% attack boost at level 2. The boost value remains constant through the ages.
	Feathered Serpent Statue	Provides +15% attack boost at level 3. The boost value remains constant through the ages, also provides the same amount of defense boost.
	Fire Pagoda	Provides from +6% to +12% attack boost depending on the building's age. The Fire Pagoda is one of the three options when upgrading the Pagoda to level 7.
	Forgotten Temple	Provides 40% attack boost for the duration of 28 days. Also provides the same amount of defense boost.
	Governor's Villa	Provides from +16% to +34% attack boost on the highest level, depending on the building's age.
	Grand King	Provides +5% attack boost at level 2. The boost value remains constant through the ages.
	Grand Queen	Provides +5% attack boost at level 2. The boost value remains constant through the ages.
	Great Wheel	Provides from +15% to +26% attack boost, depending on the building's age.
	Greater Runestone	Provides from +2% attack boost when upgraded to level 4 or more. The boost value remains constant through the ages.
	Halmbock	Provides +1% attack boost when adjacent to two other different buildings from the Winter Village Set or +3% attack boost when adjacent to three different buildings from the set. The boost values remain constant through the ages.
	Heroes Tavern	Provides from +1% to +21% attack boost, depending on the building's level and age. In addition it also provides a defense boost for the attacking army.
	Himalayan Firs	Provides from +2% to +8% attack boost at level 2, depending on the building's age. Also provides .
	House of the Wolf	Provides from +6% to +15% attack boost depending on the building's age.
	Ketebo Candy	Provides from +4% to +7% attack boost depending on the building's age.
	Key Master's Workshop	Provides from +9% to +11% attack boost on the highest level, depending on the building's age. Also provides attack boost.
	Jolie Canal	Provides from +14% to +24% attack boost depending on the building's age.
	Majestic Fawn	Provides +2% at level 1 or +4% attack boost at level 2, when adjacent to at least three other buildings from the Celtic Forest Set. The boost value remains constant through the ages.
	Marigold Patch	Provides +3% attack boost when adjacent to at least three other buildings from the Butterfly Sanctuary Set. The boost value remains constant through the ages.
	Bullion Garrison	Provides from +1% to +4% attack boost and from 0% to +4% depending on the building's level. The boost value remains constant through the ages.
	Nutcracker Guardhouse	Provides from +3% to +5% attack boost depending on the building's age.
	Olive Tree Path	Provides +4% attack boost when chained to a Gentiana Windmill. The boost value remains constant through the ages.
	Panda Shrine	Provides from +18% to +33% attack boost depending on the building's age. Also provides attack boost.
	Phantom Tower of Conjunction	Provides from +25% to +35% attack boost to the attacking army depending on the building's age. Also provides attack boost.
	Piazza Clock Tower	At level 1 provides from +2% to +7% attack boost when adjacent to three other different buildings from the Piazza Set. The boost value depends on the building's age. At level 2 +4% to +9% attack boost is provided.
	Pirate Guard Post	Provides from +1% to +2% attack boost depending on the building's age.
	Pizzeria	Provides from 16% to 25% attack boost depending on the building's age. The Pizzeria is one of the two options when reaching level 11 with the Pergola. Also provides defense boost.
	Royal Marble Gateway	Provides from +2% to +7% attack boost depending on the building's age.
	The Pirate Ship	Provides +8% attack boost. The boost value remains constant through the ages. The Pirate Ship is one of the three options when upgrading The Ship to level 7.
	Skull Cave	Provides from +11% to +20% attack boost, depending on the building's age. Also provides the same attack boost.
	Pirate's Hideout	Starts providing attack boost when upgraded to level 7 or more. Gives from +5% to +33% attack boost depending on the building's level and the age.
	Sakura Rock	Provides +2% attack boost when adjacent to two other different buildings from the Cherry Garden Set or +5% attack boost when adjacent to three different buildings from the set. The boost values remain constant through the ages. At level 2 the Sakura Rock provides +4% attack boost when adjacent to two other buildings from the set or +10% attack boost when adjacent to three.
	Snapdragon Bloom	Provides +5% attack boost when adjacent to at least three other buildings from the Butterfly Sanctuary Set. The boost value remains constant through the ages.
	Speaker's Corner	Provides from +5% to +11% attack boost depending on the building's age.
	Stage of Ages	Provides from 7% to +19% attack boost depending on the building's age.
	Tarot Card Caravans	Provides from +19% to +22% attack boost on the highest level, depending on the building's age.
	Ted's Choc	Provides from +16% to +28% attack boost depending on the building's age.
	Terror Teacups	Provides  +3% at level 1 or  +6% attack boost at level 2, when adjacent to at least three other buildings from the Horror Circus Set. The boost value remains constant through the ages.
	Tree of Silence	Provides from +1% to +2% attack boost depending on the building's age. Also provides attack boost.
	Tree of Vitality	Provides from +1% to +2% attack boost depending on the building's age. Also provides the same amount of defense boost.
	Wheat Field	Provides +12% attack boost when adjacent to at least two other buildings from the Harvest Farm Set. The boost value remains constant through the ages.
	Wildflower Meadow	Provides +10% attack boost when adjacent to at least two other buildings from the Butterfly Sanctuary Set. The boost value remains constant through the ages.
	Winners' Plaza	Provides from +2% to +6% attack boost depending on the building's age. At level 2 the Winners' Plaza provides +5% to 14% attack boost depending on the building's age.
	Yggdrasil	Provides from +6% to +30% attack boost depending on the building's level. On the same level the boost value remains constant through the ages.

Military Buildings

From the Contemporary Era and onward some of the regular military buildings also provide attack boost.

	Building	Boost	Era
	Attack Helicopter Base	+4%	Contemporary Era
	Strike Team Center	+4%	Contemporary Era
	Stealth Tank Factory	+4%	Tomorrow Era
	Ultra AP Factory	+4%	Tomorrow Era
	Exoskeleton Factory	+5%	Future Era
	Hover Tank Base	+5%	Future Era
	Behemoth Hangar	+6%	Arctic Future
	Dragon Drone Base	+7%	Arctic Future
	Manta Bay	+7%	Oceanic Future
	Nautilus Drop	+7%	Oceanic Future
	Hidden School	+8%	Virtual Future
	Rocket Range	+8%	Virtual Future

Items

Attacker boost items can be gained from the boost crate, events, Daily Challenges and Incidents. Items can only provide a temporary attack boost.
Attacker boosts can only be used one at a time. When choosing a second item, the player will be asked if they want to replace the activated item with the second one.

	Item	Attack Boost
	Small Attacker Boost	Provides +5% attack boost for 8h.
	Medium Attacker Boost	Provides +10% attack boost for 8h.
	Large Attacker Boost	Provides +20% attack boost for 8h.
	Small Pirate Attacker Boost	Provides +100% attack boost for 30 minutes.
	Medium Pirate Attacker Boost	Provides +200% attack boost for 30 minutes.
	Big Pirate Attacker Boost	Provides +300% attack boost for 30 minutes.

Friends Tavern

A temporary attack boost can be activated in the Friends Tavern with Tavern Silver.

Item	Cost	Attack Boost
	750	Activates +10% attack boost for 30m.
	3,000	Activates +20% attack boost for 4h.
	8,500	Activates +30% attack boost for 24h.

Attack Boost Providers for Defending Army

The following sources increase the attack values of the player's troops when they are used for defending. This applies for the City Defense when the player is attacked by another player of their neighborhood and when defending against another player in the PvP Arena. It also applies in Guild Expeditions Level 5 instead of the usual Attacking Army values.

Great Buildings

Some Great Buildings offer a Fierce Resistance or Advanced Tactics bonus, which beside increasing the defense value also increases the attack value of the defending units.

Building		Fierce Resistance and Advanced Tactics
	Deal Castle	Provides Fierce Resistance Provides +3% attack boost at level 1 and +30% attack boost at level 10. After level 10 +1% attack boost is gained after every second level.
	Saint Basil's Cathedral	Provides Fierce Resistance Provides +3% attack boost at level 1 and +30% attack boost at level 10. After level 10 +1% attack boost is gained after every second level.
	Terracotta Army	Provides Advanced Tactics Provides +2% attack boost at level 1 and +20% attack boost at level 10. After level 10 +1% attack boost is gained after every second level. What makes the Terracotta Army different is that the stats of the offensive army are also increased by the same amount.
	Saturn VI Gate PEGASUS	Provides Fierce Resistance Provides +5% attack boost at level 1 and +50% attack boost at level 10. After level 10 +5% attack boost is gained after every second level.
	Saturn VI Gate HYDRA	Provides Advanced Tactics Provides +3% attack boost at level 1 and +30% attack boost at level 10. After level 10 +3% attack boost is gained after every second level.

Special Buildings

	Building	Attack Boost
	Athlon Abbey	Provides from 18% to 28% attack boost on the highest level depending on the building's age. In addition it also provides a defense boost for the defending army.
	Bamboo Bridge	Provides +6%-15% attack boost when chained to a Panda Reserve, depending on the building's age.
	Bear Mountain	Provides from +18% to +38% attack boost to the defending army. In addition it also provides a defense boost for the defending army.
	Buccaneer's Boathouse	Provides from +12% to +22% attack boost, depending on the building's age. In addition it also provides a defense boost for the attacking army.
	Forgotten Temple	Provides 50% attack boost for the duration of 28 days. Also provides the same amount of defense boost.
	Globe Fountain	Provides from +6% to +10% attack boost to the defending army depending on the building's age. In addition to attack boost the Globe Fountain also provides the same amount of defense boost.
	Himalayan Firs	Provides from +2% to +8% attack boost at level 2, depending on the building's age. Also provides .
	Hippodrome Sphendone	Provides from +10% to +24% attack boost to the defending army at level 6, depending on the building's age.
	Key Master's Workshop	Provides from +10% to +12% attack boost on the highest level, depending on the building's age. Also provides attack boost.
	Jolie Canal	Provides from +15% to +30% attack boost to the defending army depending on the building's age.
	Mikoto Bridge	Provides from +12% to +26% attack boost to the defending army depending on the building's age.
	Mystical Organ	Provides +1% at level 1 or +4% attack boost at level 2 to the defending army when adjacent to at least two other buildings from the Horror Circus Set.
	Panda Shrine	Provides from +12% to +30% attack boost depending on the building's age. Also provides attack boost.
	Paradise Rose	Provides from +1% to +2% attack boost depending on the building's age.
	Phantom Tower of Conjunction	Provides from +16% to +26% attack boost to the defending army depending on the building's age. Also provides attack boost.
	Primrose Bloom	Provides +10% attack boost to the defending army.
	Serpent Spikes	Provides +15% attack boost when chained to a Feathered Serpent Statue. The boost value remains constant through the ages, also provides the same amount of defense boost.
	Skull Cave	Provides from +11% to +20% attack boost, depending on the building's age. Also provides the same attack boost.
	Standing Stone	Provides +3% at level 1 or +6% attack boost at level 2 to the defending army when adjacent to at least two other buildings from the Celtic Forest Set.
	Tactician's Tower	Provides from +2% to +4% attack boost to the defending army depending on the building's level.
	Terror Teacups	Provides +3% at level 1 or +6% attack boost at level 2 to the defending army when adjacent to at least two other buildings from the Horror Circus Set. In addition it also provides a defense boost for the defending army.
	Tree of Silence	Provides from +2% to +4% attack boost depending on the building's age. Also provides attack boost.

See also

Offensive Army
Defensive Army
Defense Boost
Boost Crate