The King of Atlantis

+1: Until end of turn, whenever an island you control taps for mana, it taps for an additional colorless. Spend this mana only to cast blue spells.
-2: Target land becomes an island until your next turn. Then, up to one creature you control gains islandwalk until end of turn.
-8: Create three blue 8/8 Kraken creature tokens with hexproof.