Boomerang

Return target permanent to its owner's hand.

Energy Flux

All artifacts have "At the beginning of your upkeep, sacrifice this artifact unless you pay {2}."

Maze of Ith

{T}: Untap target attacking creature. Prevent all combat damage that would be dealt to and dealt by that creature this turn.

Phantasmal Terrain

Enchant land
As Phantasmal Terrain enters, choose a basic land type.
Enchanted land is the chosen type.

Island

Vodalian Soldiers

Seasinger

When you control no Islands, sacrifice Seasinger.
You may choose not to untap Seasinger during your untap step.
{T}: Gain control of target creature whose controller controls an Island for as long as you control Seasinger and Seasinger remains tapped.

Time Walk

Unstable Mutation

Enchant creature
Enchanted creature gets +3/+3.
At the beginning of the upkeep of enchanted creature's controller, put a -1/-1 counter on that creature.

Serendib Efreet

Flying
At the beginning of your upkeep, Serendib Efreet deals 1 damage to you.

Blue Elemental Blast

Choose one —
• Counter target red spell.
• Destroy target red permanent.

Control Magic

Enchant creature
You control enchanted creature.

Lifetap

Whenever a Forest an opponent controls becomes tapped, you gain 1 life.

Psychic Purge

Psychic Purge deals 1 damage to any target.
When a spell or ability an opponent controls causes you to discard Psychic Purge, that player loses 5 life.

Nevinyrral's Disk

Nevinyrral's Disk enters tapped.
{1}, {T}: Destroy all artifacts, creatures, and enchantments.

Clone

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

Unsummon

Return target creature to its owner's hand.

Psionic Blast

Psionic Blast deals 4 damage to any target and 2 damage to you.

Merfolk of the Pearl Trident

Ancestral Recall

Ghost Ship

Lord of Atlantis

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

River Merfolk

{U}: River Merfolk gains mountainwalk until end of turn. (It can't be blocked as long as defending player controls a Mountain.)

Prodigal Sorcerer

{T}: Prodigal Sorcerer deals 1 damage to any target.

Merfolk Assassin

{T}: Destroy target creature with islandwalk.

Chaos Orb

{1}, {T}: If Chaos Orb is on the battlefield, flip Chaos Orb onto the battlefield from a height of at least one foot. If Chaos Orb turns over completely at least once during the flip, destroy all nontoken permanents it touches. Then destroy Chaos Orb.