Gain control of target creature until end of turn. Untap that creature. It gains haste until end of turn. (It can attack and {T} this turn.)
{U}{B}
Agony Warp
Instant
Target creature gets -3/-0 until end of turn.
Target creature gets -0/-3 until end of turn.
{U}
Aqueous Form
Enchantment - Aura
Enchant creature
Enchanted creature can't be blocked.
Whenever enchanted creature attacks, scry 1. (Look at the top card of your library. You may put that card on the bottom of your library.)
{1}{U}{B}
Ashiok, Nightmare Weaver
Legendary Planeswalker - Ashiok
+2: Exile the top three cards of target opponent's library.
-X: Put a creature card with mana value X exiled with Ashiok, Nightmare Weaver onto the battlefield under your control. That creature is a Nightmare in addition to its other types.
-10: Exile all cards from all opponents' hands and graveyards.
L:
3
{6}{B}{B}
Avatar of Woe
Creature - Avatar
If there are ten or more creature cards total in all graveyards, this spell costs {6} less to cast.
Fear (This creature can't be blocked except by artifact creatures and/or black creatures.)
{T}: Destroy target creature. It can't be regenerated.
6 /
5
{1}{B}{R}
Backlash
Instant
Tap target untapped creature. That creature deals damage equal to its power to its controller.
{2}{B}{B}
Barter in Blood
Sorcery
Each player sacrifices two creatures.
{2}{B}{R}
Blazing Specter
Creature - Specter
Flying, haste
Whenever Blazing Specter deals combat damage to a player, that player discards a card.
2 /
2
{B}
Bone Splinters
Sorcery
As an additional cost to cast this spell, sacrifice a creature.
Destroy target creature.
{U}{U}
Counterspell
Instant
Counter target spell.
--
Crosis's Catacombs
Land - Lair
When Crosis's Catacombs enters the battlefield, sacrifice it unless you return a non-Lair land you control to its owner's hand.
{T}: Add {U}, {B}, or {R}.
{3}{U}{B}{R}
Crosis, the Purger
Legendary Creature - Dragon
Flying
Whenever Crosis, the Purger deals combat damage to a player, you may pay {2}{B}. If you do, choose a color, then that player reveals their hand and discards all cards of that color.
6 /
6
{U}{B}
Dimir Charm
Instant
Choose one --
• Counter target sorcery spell.
• Destroy target creature with power 2 or less.
• Look at the top three cards of target player's library. Put one back and the rest into that player's graveyard.
{1}{U}{U}
Dissipate
Instant
Counter target spell. If that spell is countered this way, exile it instead of putting it into its owner's graveyard.
{1}{B}
Doom Blade
Instant
Destroy target nonblack creature.
{1}{U}
Dream Thrush
Creature - Bird
Flying
{T}: Target land becomes the basic land type of your choice until end of turn.
1 /
1
{1}{U}
Fog Bank
Creature - Wall
Defender, flying
Prevent all combat damage that would be dealt to and dealt by Fog Bank.
0 /
2
{1}{B}
Go for the Throat
Instant
Destroy target nonartifact creature.
{1}{B}
Hero's Demise
Instant
Destroy target legendary creature.
{2}{R}{R}
Hound of Griselbrand
Creature - Elemental Dog
Double strike
Undying (When this creature dies, if it had no +1/+1 counters on it, return it to the battlefield under its owner's control with a +1/+1 counter on it.)
2 /
2
{3}{U}{R}
Hypersonic Dragon
Creature - Dragon
Flying, haste
You may cast sorcery spells as though they had flash. (You may cast them any time you could cast an instant.)
4 /
4
{B}
Innocent Blood
Sorcery
Each player sacrifices a creature.
{R}
Lightning Bolt
Instant
Lightning Bolt deals 3 damage to any target.
{1}{R}
Lightning Strike
Instant
Lightning Strike deals 3 damage to any target.
{1}{U}
Mana Leak
Instant
Counter target spell unless its controller pays {3}.
{1}{U}
Negate
Instant
Counter target noncreature spell.
{U/B}{U/B}{U/B}
Nightveil Specter
Creature - Specter
Flying
Whenever Nightveil Specter deals combat damage to a player, that player exiles the top card of their library.
You may play lands and cast spells from among cards exiled with Nightveil Specter.
2 /
3
{4}{U}{B}{R}
Thraximundar
Legendary Creature - Zombie Assassin
Haste
Whenever Thraximundar attacks, defending player sacrifices a creature.
Whenever a player sacrifices a creature, you may put a +1/+1 counter on Thraximundar.
6 /
6
{1}{R}
Thunderbolt
Instant
Choose one --
• Thunderbolt deals 3 damage to target player or planeswalker.
• Thunderbolt deals 4 damage to target creature with flying.
{5}{B}{R}
Tsabo Tavoc
Legendary Creature - Phyrexian Horror
First strike, protection from legendary creatures
{B}{B}, {T}: Destroy target legendary creature. It can't be regenerated.
7 /
4
{3}{B}{R}
Underworld Cerberus
Creature - Dog
Underworld Cerberus can't be blocked except by three or more creatures.
Cards in graveyards can't be the targets of spells or abilities.
When Underworld Cerberus dies, exile it and each player returns all creature cards from their graveyard to their hand.
6 /
6
{U}
Vapor Snag
Instant
Return target creature to its owner's hand. Its controller loses 1 life.
{1}{U}
Voyage's End
Instant
Return target creature to its owner's hand. Scry 1. (Look at the top card of your library. You may put that card on the bottom of your library.)
{U}
Word of Undoing
Instant
Return target creature and all white Auras you own attached to it to their owners' hands.
{3}{U}
Clone
Creature - Shapeshifter
You may have Clone enter the battlefield as a copy of any creature on the battlefield.