Mythic Hydra

Trample
{g}{g}{g}{g}{g}{g}{g}{g}{g}{g}: Monstrosity 10. (If this creature isn't monstrous, put ten +1/+1 counters on it
and it becomes monstrous.)
When Mythic Hydra dies, return it to the battlefield under its owner's control at the
beginning of the next end step.