Seraphine

Legend · PassiveAs an additional cost to play a spell, you may exhaust me and three friendly units to reduce the cost of that spell by 2 Energy.

Seraphine sings with her whole crew. Starry-Eyed Songstress exhausts itself and three of your units to make a spell [2] cheaper, High Note shrinks a unit by every exhausted unit you control, and Seraphine, Not Alone grows with them — her trials teach you which units to spend, and when to sing.