All information about the building Spirit Altar in King of Avalon including prerequisites, resource requirements, time, Power increase and boosts.

Building where you can start or participate in Spirit Ceremonies, claim your rewards for the Alliance Celebration, and check out the Spirit Achievements. You can use your Spirit Coins here to buy various goodies. Not sure which alliance XP level this becomes available, I know for sure it is available at an Alliance XP Level 10.