World Tree Yggdrasil / World Tree / Yggdrasil
22 Mana; Fruit of Knowledge
Enchant all allies and give them all +x Health. Then give them Submerged if there are 12 or more blue gems. Give them Blessed if 12 or more green gems. Give them Barrier if 12 or more yellow gems.
Ancient Roots: A random friendly troop gains 2 mana on 4 and 5 gem matches