Kaya, Geist Hunter (294) - Commander: Tarkir: Dragonstorm

[+1]: Creatures you control gain deathtouch until end of turn. Put a +1/+1 counter on up to one target creature token you control.

[-2]: Until end of turn, if one or more tokens would be created under your control, twice that many of those tokens are created instead.

[-6]: Exile all cards from all graveyards, then create a 1/1 white Spirit creature token with flying for each card exiled this way.