Aerie Steward is the core unit of this deck. You will summon 3 or 4 copies every game. Its life is very high, and its damage is good as long as they are next to Ava or an Aerie Sage. Its “secret power” is that Worthy benefits greatly from attack strength increases. So its damage can become very high, very fast if Worthy is activated along with Aerie Sage and/or Battle Song enhancements.
With proper support its stats can be so high for its cost that it becomes good both in melee and at range. And they provide both damage and sturdy defense. Use them for everything. Its only weakness, which is no small weakness, is that they rely a lot on using movements to set up things in perfect position, and without Ava or Aerie Sage support, they are quite mediocre.