Managorger Phoenix

Flying
Managorger Phoenix can't block.
Whenever you cast a spell, if Managorger
Phoenix is in your graveyard, put a flame counter
on it for each {r} in that spell's mana cost.
If Managorger Phoenix has five or more flame
counters on it, return it to the battlefield and
put a +1/+1 counter on it. As Managorger
Phoenix moves between the graveyard and the
battlefield, +1/+1 counters remain on it.