Xera'thrax, the Red Tyrant

Flying, haste, trample
When Xera'thrax, the Red Tyrant enters the battlefield, it deals 10 damage divided as you choose amongst any number of targets.
{b/r}: Creatures you control gain +1/+0 and trample until the end of the turn.
If Xera'thrax, the Red Tyrant would be put into the graveyard from the battlefield, exile it, then return it to the battlefield transformed.