Kenson, O'Kell's Ocean God

Indestructible, Islandwalk
When Kenson, O'Kell's Ocean God attacks and become blocked by a non-blue creature, draw X cards where X is half of Kenson, O'Kell's Ocean God's power rounded down
Other blue creatures you control have Islandwalk
If Kenson, O'Kell's Ocean God dies, tap all permanents you control, destroy all untap permanents