Island

Sea Serpent

Sea Serpent can't attack unless defending player controls an Island.
When you control no Islands, sacrifice Sea Serpent.

Blue Elemental Blast

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

Terror

Destroy target nonartifact, nonblack creature. It can't be regenerated.

Unholy Strength

Enchant creature
Enchanted creature gets +2/+1.

Howl from Beyond

Target creature gets +X/+0 until end of turn.

Sinkhole

Swamp

Twiddle

You may tap or untap target artifact, creature, or land.

Time Walk

Paralyze

Enchant creature
When Paralyze enters, tap enchanted creature.
Enchanted creature doesn't untap during its controller's untap step.
At the beginning of the upkeep of enchanted creature's controller, that player may pay {4}. If the player does, untap the creature.

Demonic Tutor

Search your library for a card, put that card into your hand, then shuffle.

Scavenging Ghoul

At the beginning of each end step, put a corpse counter on Scavenging Ghoul for each creature that died this turn.
Remove a corpse counter from Scavenging Ghoul: Regenerate Scavenging Ghoul.

Drain Life

Spend only black mana on X.
Drain Life deals X damage to any target. You gain life equal to the damage dealt, but not more life than the player's life total before the damage was dealt, the planeswalker's loyalty before the damage was dealt, or the creature's toughness.

Black Knight

First strike (This creature deals combat damage before creatures without first strike.)
Protection from white (This creature can't be blocked, targeted, dealt damage, or enchanted by anything white.)

Plague Rats

Plague Rats's power and toughness are each equal to the number of creatures named Plague Rats on the battlefield.

Psychic Venom

Enchant land
Whenever enchanted land becomes tapped, Psychic Venom deals 2 damage to that land's controller.

Drudge Skeletons

{B}: Regenerate Drudge Skeletons. (The next time this creature would be destroyed this turn, instead tap it, remove it from combat, and heal all damage on it.)

Counterspell

Frozen Shade

{B}: Frozen Shade gets +1/+1 until end of turn.

Dark Ritual

Bog Wraith

Swampwalk (This creature can't be blocked as long as defending player controls a Swamp.)

Word of Command

Look at target opponent's hand and choose a card from it. You control that player until Word of Command finishes resolving. The player plays that card if able. While doing so, the player can activate mana abilities only if they're from lands that player controls and only if mana they produce is spent to activate other mana abilities of lands the player controls and/or to play that card. If the chosen card is cast as a spell, you control the player while that spell is resolving.

Raise Dead

Return target creature card from your graveyard to your hand.

Black Vise

As Black Vise enters, choose an opponent.
At the beginning of the chosen player's upkeep, Black Vise deals X damage to that player, where X is the number of cards in their hand minus 4.

Merfolk of the Pearl Trident

Sol Ring

Weakness

Enchant creature
Enchanted creature gets -2/-1.

Mox Jet

Flight

Enchant creature
Enchanted creature has flying.

Sengir Vampire

Flying (This creature can't be blocked except by creatures with flying or reach.)
Whenever a creature dealt damage by Sengir Vampire this turn dies, put a +1/+1 counter on Sengir Vampire.

Invisibility

Enchant creature
Enchanted creature can't be blocked except by Walls.

Wall of Water

Defender (This creature can't attack.)
{U}: Wall of Water gets +1/+0 until end of turn.