Crown of Ash: Monuments Expansion

Aether, the 5th element. The mysterious substance that fills the space through which energy and gravity travel. The Necromancer lords can now delve deeper into the murky world of Alchemy to unlock the full potential of those under their control. The Monuments expansion is the first major expansion to Crown of Ash. Adding Aether, a new resource players can tap into to train Minions and build Monuments. Trained minions have new masks placed onto them giving them bonus actions upon being placed. Monuments are placed into controlled regions to unlock powerful buffs, as long as they still stand! —description from the designer