Challenge yourself with Frost Fortress, adding health to the base you're attacking and increasing your squad size.

Battle Boost Quality Rival Building Health Increase Squad Size Increase
Rarity_Superior.png 5% +1 Squad Size
Rarity_Rare.png 15% +2 Squad Size
Rarity_Epic.png 25% +3 Squad Size
Rarity_Legendary.png 35% +4 Squad Size
Rarity_Mythic.png 45% +5 Squad Size

Battle Boosts overview