FlamesGhost, Dominion Engine

Whenever you cast a non-creature spell, place a +1/+1 counter on FlamesGhost, Dominion Engine.

At the beginning of your upkeep, if FlamesGhost, Dominion Engine has 3 or more +1/+1 counters on it, you may put the top card of your library into your graveyard. If it is a
non-creature spell, you may cast it without paying its mana cost.