Gigaraptor

Haste, Trample, Vigilance.
When Gigaraptor destroys a creature, put a
+X/+X counter on him, where X is the power
and toughness of that creature combined.
Its faster than the fastest, and hungrier than the
hungriest. You hear its roar, run. You feel its steps,
run. You see its fangs, it's too late.