Tropical Island

Mox Emerald

Time Walk

Power Sink

Counter target spell unless its controller pays {X}. If that player doesn't, they tap all lands with mana abilities they control and lose all unspent mana.

Control Magic

Enchant creature
You control enchanted creature.

Merfolk of the Pearl Trident

Channel

Until end of turn, any time you could activate a mana ability, you may pay 1 life. If you do, add {C}.

Craw Wurm

Island

Black Lotus

{T}, Sacrifice Black Lotus: Add three mana of any one color.

Sol Ring

Llanowar Elves

Clone

You may have Clone enter as a copy of any creature on the battlefield.

Counterspell

Mana Vault

Mana Vault doesn't untap during your untap step.
At the beginning of your upkeep, you may pay {4}. If you do, untap Mana Vault.
At the beginning of your draw step, if Mana Vault is tapped, it deals 1 damage to you.
{T}: Add {C}{C}{C}.

Living Lands

All Forests are 1/1 creatures that are still lands.

Birds of Paradise

Lord of Atlantis

Other Merfolk get +1/+1 and have islandwalk. (They can't be blocked as long as defending player controls an Island.)

Juggernaut

This creature attacks each combat if able.
This creature can't be blocked by Walls.