Gristalok, Tyrant of Tides

Islandwalk, trample, shroud
You have no maximum hand size.
When Gristalok enters the battlefield under your control, draw a card for each Kraken, Leviathan, Octopus, and Serpent you control.
Whenever Gristalok attacks or blocks, create X 1/1 blue Octopus creature tokens with islandwalk and shroud, where X is equal to the number of cards
you've drawn this turn.
{1}{u}{u}, {t}: Exile Gristalok until end of turn.