
Gisela, the Broken Blade | Legendary Creature | Angel Horror | Flying, first strike, lifelink
At the beginning of your end step, if you both own and control Gisela, the Broken Blade and a creature named Bruna, the Fading Light, exile them, then meld them into Brisela, Voice of Nightmares. | Clint Cearley

Tree of Perdition | Creature | Plant | Defender
{T}: Exchange target opponent's life total with Tree of Perdition's toughness. | Jung Park

Mirrorwing Dragon | Creature | Dragon | Flying
Whenever a player casts an instant or sorcery spell that targets only Mirrorwing Dragon, that player copies that spell for each other creature they control that the spell could target. Each copy targets a different one of those creatures. | Min Yum

Ishkanah, Grafwidow | Legendary Creature | Spider | Reach
Delirium — When Ishkanah, Grafwidow enters the battlefield, if there are four or more card types among cards in your graveyard, create three 1/2 green Spider creature tokens with reach.
{6}{B}: Target opponent loses 1 life for each Spider you control. | Christine Choi

Gisa and Geralf | Legendary Creature | Human Wizard | When Gisa and Geralf enters the battlefield, mill four cards.
During each of your turns, you may cast a Zombie creature spell from your graveyard. | Karla Ortiz

Grim Flayer | Creature | Human Warrior | Trample
Whenever Grim Flayer deals combat damage to a player, surveil 3. (Look at the top three cards of your library, then put any number of them into your graveyard and the rest on top of your library in any order.)
Delirium — Grim Flayer gets +2/+2 as long as there are four or more card types among cards in your graveyard. | Mathias Kollros

Ulrich of the Krallenhorde | Legendary Creature | Human Werewolf | Whenever this creature enters the battlefield or transforms into Ulrich of the Krallenhorde, target creature gets +4/+4 until end of turn.
At the beginning of each upkeep, if no spells were cast last turn, transform Ulrich of the Krallenhorde. | Slawomir Maniak

Decimator of the Provinces | Creature | Eldrazi Boar | Emerge {6}{G}{G}{G} (You may cast this spell by sacrificing a creature and paying the emerge cost reduced by that creature's mana value.)
When you cast this spell, creatures you control get +2/+2 and gain trample until end of turn.
Trample, haste | Svetlin Velinov

Emrakul, the Promised End | Legendary Creature | Eldrazi | This spell costs {1} less to cast for each card type among cards in your graveyard.
When you cast this spell, you gain control of target opponent during that player's next turn. After that turn, that player takes an extra turn.
Flying, trample, protection from instants | Jaime Jones