Pact of Negation

Counter target spell.
At the beginning of your next upkeep, pay . If you don’t, you lose the game.

Gisela, Blade of Goldnight

Flying, first strike
If a source would deal damage to an opponent or a permanent an opponent controls, that source deals double that damage to that player or permanent instead.
If a source would deal damage to you or a permanent you control, prevent half that damage, rounded up.

Jace, the Mind Sculptor

+2: Look at the top card of target player’s library. You may put that card on the bottom of that player’s library.
0: Draw three cards, then put two cards from your hand on top of your library in any order.
−1: Return target creature to its owner’s hand.
−12: Exile all cards from target player’s library, then that player shuffles their hand into their library.

Vampire Nighthawk

Flying
Deathtouch (Any amount of damage this deals to a creature is enough to destroy it.)
Lifelink (Damage dealt by this creature also causes you to gain that much life.)

Avacyn, Angel of Hope

Flying, vigilance, indestructible
Other permanents you control have indestructible.

Nimbus Maze

: Add .
: Add . Activate only if you control an Island.
: Add . Activate only if you control a Plains.

Vampire Nighthawk

Flying
Deathtouch (Any amount of damage this deals to a creature is enough to destroy it.)
Lifelink (Damage dealt by this creature also causes you to gain that much life.)

Spirit of the Hearth

Flying
You have hexproof. (You can’t be the target of spells or abilities your opponents control.)

Butcher of Malakir

Flying
Whenever Butcher of Malakir or another creature you control dies, each opponent sacrifices a creature of their choice.

Vampire Nighthawk

Flying
Deathtouch (Any amount of damage this deals to a creature is enough to destroy it.)
Lifelink (Damage dealt by this creature also causes you to gain that much life.)

Khalni Heart Expedition

Landfall — Whenever a land you control enters, you may put a quest counter on Khalni Heart Expedition.
Remove three quest counters from Khalni Heart Expedition and sacrifice it: Search your library for up to two basic land cards, put them onto the battlefield tapped, then shuffle.

Malfegor

Flying
When Malfegor enters, discard your hand. Each opponent sacrifices a creature of their choice for each card discarded this way.

Butcher of Malakir

Flying
Whenever Butcher of Malakir or another creature you control dies, each opponent sacrifices a creature of their choice.

Desecration Demon

Flying
At the beginning of each combat, any opponent may sacrifice a creature of their choice. If a player does, tap this creature and put a +1/+1 counter on it.

Vampire Nighthawk

Flying
Deathtouch (Any amount of damage this deals to a creature is enough to destroy it.)
Lifelink (Damage dealt by this creature also causes you to gain that much life.)

Hellkite Igniter

Flying, haste
: Hellkite Igniter gets +X/+0 until end of turn, where X is the number of artifacts you control.

Sunpetal Grove

Sunpetal Grove enters tapped unless you control a Forest or a Plains.
: Add or .

Desecration Demon

Flying
At the beginning of each combat, any opponent may sacrifice a creature of their choice. If a player does, tap this creature and put a +1/+1 counter on it.

Spirit of the Hearth

Flying
You have hexproof. (You can’t be the target of spells or abilities your opponents control.)

Beseech the Queen

( can be paid with any two mana or with . This card’s mana value is 6.)
Search your library for a card with mana value less than or equal to the number of lands you control, reveal it, put it into your hand, then shuffle.

Jace, the Mind Sculptor

+2: Look at the top card of target player’s library. You may put that card on the bottom of that player’s library.
0: Draw three cards, then put two cards from your hand on top of your library in any order.
−1: Return target creature to its owner’s hand.
−12: Exile all cards from target player’s library, then that player shuffles their hand into their library.

Kalemne, Disciple of Iroas

Double strike, vigilance
Whenever you cast a creature spell with mana value 5 or greater, you get an experience counter.
Kalemne, Disciple of Iroas gets +1/+1 for each experience counter you have.

Melek, Izzet Paragon

Play with the top card of your library revealed.
You may cast instant and sorcery spells from the top of your library.
Whenever you cast an instant or sorcery spell from your library, copy it. You may choose new targets for the copy.