Defense Boost

The Defense Boost is a feature of some buildings and items to increase the defense value of units defending the city by a certain percentage. The defense boost can also be activated from the Friends Tavern by paying for it with Tavern Silver.

The defense boost only benefits the defending units, offensive units will not be affected. To increase the stats of the offensive units players may use the attack boost.

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

Defense Boost Providers

Great Buildings

Some of the 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. Great Buildings are the only option to boost the attack value of the defending units.

Building		Fierce Resistance and Advanced Tactics
	Deal Castle	Provides Fierce Resistance Provides +3% defense boost at level 1 and +30% defense boost at level 10. After level 10 +1% defense boost is gained after every second level.
	Saint Basil's Cathedral	Provides Fierce Resistance Provides +3% defense boost at level 1 and +30% defense boost at level 10. After level 10 +1% defense boost is gained after every second level.
	Terracotta Army	Provides Advanced Tactics Provides +2% defense boost at level 1 and +20% defense boost at level 10. After level 10 +1% defense 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.

Special Buildings

Building		Defense Boost
	The Appleton Cottage	Provides from +10% to +18% defense boost depending on the buildings age. The Appleton Cottage is one of the three options when reaching level 7 with the September Cottage.
	Athlete Living Quarters	Provides +7% defense boost. The boost value remains constant through the ages.
	Classical Garden Pool	Provides +4% defense boost when adjacent to one other different buildings from the Classical Garden Set. The boost values remain constant through the ages.
	Elephant Fountain	Provides from +3% to +9% defense boost when adjacent to at least three other building from the Indian Fountain Set. The boost value depends on the buildings age.
	Garden Ruins	Provides +2% defense boost when adjacent to one other different buildings from the Royal Garden Set or +5% defense boost when adjacent to two different buildings from the set. The boost values remain constant through the ages.
	Monastery	Provides +20% defense boost.
	Nishikigoi Pond	Provides +2% defense boost when adjacent to two other different buildings from the Cherry Garden Set or +5% defense boost when adjacent to three different buildings from the set. The boost values remain constant through the ages. At level 2 the Nishikigoi Pond provides +5% defense boost when adjacent to two other buildings from the set or +12% defense boost when adjacent to three.
	Pond of Fall	Provides from +6% to +11% defense boost depending on the buildings age.
	Ritual Flame	Provides +8% defense boost. The boost value remains constant through the ages.
	Royal Guard Post	Provides +1% to +2% defense boost depending on the buildings age.
	Smörgåsbord Feast	Provides +2% defense boost when adjacent to two other different buildings from the Winter Village Set or +5% defense boost when adjacent to three different buildings from the set. The boost values remain constant through the ages.
	Sundial Spire	Provides from +2% to +7% defense boost depending on the buildings age.
	Tigers' Den	Provides +5% defense boost. The boost value remains constant through the ages.
	Watchfire	Provides +4% defense boost at level 1. At level 2 +6% defense boost is provided. The boost values remain constant through the ages.
	Winter Spire	When upgraded to level 5 or more starts to provides +3% to +14% defense boost depending on the buildings level and the age.

Items

Defender boost items can be gained from the boost crate, events, Daily Challenges and Incidents. Items can only provide temporary defense boost. The boost effect from the items do stack up, that means players may use multiple boost items at once.

Item		Defense Boost
	Small Defender Boost	Provides +10% defense boost for 8h.
	Medium Defender Boost	Provides +20% defense boost for 8h.
	Large Defender Boost	Provides +30% defense boost for 8h.