Unfallen Colossus

Reach, trample
Unfallen Colossus enters the battlefield, tapped
with three stun counters.
Unfallen Colossus has shroud as long as it has
at least one stun counter on it.
Whenever Unfallen Colossus attacks, other
creatures you control get +X/+X and have
trample and first strike until end of turn, where
X is the number of creatures you control.