Cannonbolt, Ultimate Form

Ultimate (When this creature enters the
battlefield, you may pay {2}. If you don't, skip
your next combat phase.)
Trample, rampage 2 (For each creature
assigned to block it after the first, this
creature gets +2/+2 until end of turn.)
Cannonbolt, Ultimate Form has
indestructible as long as it's tapped.