Jason, Hydra of the Ocean

Jason, Hydra of the Oceans enters the battlefield with X +1/+1 counters on it.
Trample, Islandwalk.
Monstrofied Creatures you control gain Islandwalk.
{x}{x}{u}{g}{g}: Monstrosity X.
"Do you know who I am? I AM the oceans, I AM the waters, I AM, your DOOM."
-Jason, Translated from Kraken