Collosus, Dreadmaw Liege

Dinosaurs you control have:
Whenever this creature attacks, choose one:
•Untill end of turn, this creatures base power and toughness become 6/6. It gains trample untill end of turn.
•Untill end of turn, target creature defending player controls becomes a collorless food artifact with "{2},{t}, sacrifice this artifact: you
gain 3 life" and it loses all other types and abilities.
Whenever a food is put into the graveyard from play, you may put 2 +1/+1 counters on target dinosaur.