Craterhoof Behemoth

Haste
When Craterhoof Behemoth enters the battlefield, creatures you control gain trample and get +X/+X until end of turn, where X is the number of creatures you control.
"So it all started when I bought a portal ticket over to western Zendikar. And here's the funny part. I was flying
on my dragon, when I decided to stop for a 'pit-stop'.
And when I went back to my dragon, it was gone."
- Doofenschmirtz