Islandwalk (This creature can't be blocked as long as defending player controls an Island.) This creature can't attack unless there are five or more Islands on the battlefield.

This creature can't be blocked as long as defending player controls an artifact.

Enchant land (Target a land as you cast this. This card enters attached to that land.) Enchanted land is an Island.

Krakens, Leviathans, Octopuses, and Serpents you control can't be blocked except by Krakens, Leviathans, Octopuses, and Serpents.

Put a flood counter on target land. That land is an Island in addition to its other types for as long as it has a flood counter on it. If you control a Merfolk, draw a card.

As this artifact enters, choose a color. Creatures you control of the chosen color get +1/+1. Whenever a land's ability causes you to add one or more mana of the chosen color, add one additional mana of that color.

Multikicker {2} (You may pay an additional {2} any number of times as you cast this spell.) This artifact enters with a charge counter on it for each time it was kicked. {T}: Add {C} for each charge counter on this artifact.

{4}, {T}: You may put a creature card from your hand onto the battlefield.

Islandwalk (This creature can't be blocked as long as defending player controls an Island.)

Defender Megamorph {6}{U} (You may cast this card face down as a 2/2 creature for {3}. Turn it face up any time for its megamorph cost and put a +1/+1 counter on it.)

This creature can't attack unless defending player controls an Island. {U}, Sacrifice an Island: Target land becomes an Island until end of turn.

Affinity for artifacts (This spell costs {1} less to cast for each artifact you control.) {5}{U}: This creature can't be blocked this turn.

This creature can't attack unless defending player controls an Island. {U}, Sacrifice an Island: Target land an opponent controls becomes an Island until end of turn. When you control no Islands, sacrifice this creature.

This creature can't attack unless defending player controls an Island. When you control no Islands, sacrifice this creature.

Serpent of the Endless Sea's power and toughness are each equal to the number of Islands you control. This creature can't attack unless defending player controls an Island.

Return target permanent to its owner's hand.

Counter target spell.

Affinity for tokens (This spell costs {1} less to cast for each token you control.) Whenever a token you control enters, tap target nonland permanent an opponent controls. It doesn't untap during its controller's next untap step.

Counter target spell. At the beginning of your next main phase, add an amount of {C} equal to that spell's mana value.