Kosta, Value Incarnate

As Kosta, Value Incarnate enters the battlefield or attacks, choose one creature card from your graveyard. You may exile that card.

The first card you cast from exile each turn costs {u/b} less, where {u/b} is equal to your devotion.

When you play a card from exile, make a 3/3 white token spirit named "Gary" and draw a card.