Takamzu, Marred Dino-Killer

Whenever Takamzu, Marred Dino-Killer attacks, if a creature left the battlefield last turn, due to damage dealt by Takamzu, Marred Dino-Killer, it gets +5/+5 and gains trample until end of turn. If that creature was a Dinosaur, Takamzu, Marred Dino-Killer gains flying as well.
{2}{g}{g}: Takamzu, Marred Dino-Killer gets X/X until end of turn, where X is your devotion to green.