Excelsior!

At the beginning of your upkeep, choose one
at random. Create a red and white creature
token with those characteristics.
•3/1 Mutant Berserker with trample and haste.
•2/1 Shapeshifter with lifelink and haste.
•1/2 Human Rogue with haste and "When
this creature enters the battlefield, it deals 1
damage to any target."
'nuff said.