Harhpon, Maker of Tides

+1: You may tap or untap two target creatures.
-3: Harhpon, Maker of Tides deals X damage to target creature, where X is the number of Islands you control.
-9: Create three creature tokens. A 5/5 blue Whale with menace, a 5/5 blue Octopus with double strike and a 5/5 blue Serpent with islandwalk.