
Angel of Serenity | Creature | Angel | Flying
When Angel of Serenity enters the battlefield, you may exile up to three other target creatures from the battlefield and/or creature cards from graveyards.
When Angel of Serenity leaves the battlefield, return the exiled cards to their owners' hands. | Aleksi Briclot

Jace, Architect of Thought | Legendary Planeswalker | Jace | +1: Until your next turn, whenever a creature an opponent controls attacks, it gets -1/-0 until end of turn.
−2: Reveal the top three cards of your library. An opponent separates those cards into two piles. Put one pile into your hand and the other on the bottom of your library in any order.
−8: For each player, search that player's library for a nonland card and exile it, then that player shuffles. You may cast those cards without paying their mana costs. | Jaime Jones

Necropolis Regent | Creature | Vampire | Flying
Whenever a creature you control deals combat damage to a player, put that many +1/+1 counters on it. | Winona Nelson

Utvara Hellkite | Creature | Dragon | Flying
Whenever a Dragon you control attacks, create a 6/6 red Dragon creature token with flying. | Mark Zug

Worldspine Wurm | Creature | Wurm | Trample
When Worldspine Wurm dies, create three 5/5 green Wurm creature tokens with trample.
When Worldspine Wurm is put into a graveyard from anywhere, shuffle it into its owner's library. | Richard Wright

Isperia, Supreme Judge | Legendary Creature | Sphinx | Flying
Whenever a creature attacks you or a planeswalker you control, you may draw a card. | Scott M. Fischer

Sphinx's Revelation | Instant | | You gain X life and draw X cards. | Slawomir Maniak

Armada Wurm | Creature | Wurm | Trample
When Armada Wurm enters the battlefield, create a 5/5 green Wurm creature token with trample. | Volkan Baǵa

Trostani, Selesnya's Voice | Legendary Creature | Dryad | Whenever another creature enters the battlefield under your control, you gain life equal to that creature's toughness.
{1}{G}{W}, {T}: Populate. (Create a token that's a copy of a creature token you control.) | Chippy

Epic Experiment | Sorcery | | Exile the top X cards of your library. You may cast instant and sorcery spells with mana value X or less from among them without paying their mana costs. Then put all cards exiled this way that weren't cast into your graveyard. | Dan Scott

Niv-Mizzet, Dracogenius | Legendary Creature | Dragon Wizard | Flying
Whenever Niv-Mizzet, Dracogenius deals damage to a player, you may draw a card.
{U}{R}: Niv-Mizzet, Dracogenius deals 1 damage to any target. | Todd Lockwood

Rakdos, Lord of Riots | Legendary Creature | Demon | You can't cast this spell unless an opponent lost life this turn.
Flying, trample
Creature spells you cast cost {1} less to cast for each 1 life your opponents have lost this turn. | Vincent Proce

Rakdos's Return | Sorcery | | Rakdos's Return deals X damage to target opponent or planeswalker. That player or that planeswalker's controller discards X cards. | Daarken

Jarad, Golgari Lich Lord | Legendary Creature | Zombie Elf | Jarad, Golgari Lich Lord gets +1/+1 for each creature card in your graveyard.
{1}{B}{G}, Sacrifice another creature: Each opponent loses life equal to the sacrificed creature's power.
Sacrifice a Swamp and a Forest: Return Jarad from your graveyard to your hand. | Eric Deschamps

Vraska the Unseen | Legendary Planeswalker | Vraska | +1: Until your next turn, whenever a creature deals combat damage to Vraska the Unseen, destroy that creature.
−3: Destroy target nonland permanent.
−7: Create three 1/1 black Assassin creature tokens with "Whenever this creature deals combat damage to a player, that player loses the game." | Aleksi Briclot