Crashing Centaur

Crashing Centaur

Creature - Centaur | Power/Toughness: 3 / 4 (CMC 6)
, Discard a card: Crashing Centaur gains trample until end of turn.
Threshold -- As long as seven or more cards are in your graveyard, Crashing Centaur gets +2/+2 and has shroud. (It can't be the target of spells or abilities.)