Ajani Steadfast

+1: Until end of turn, up to one target creature gets +1/+1 and gains first strike, vigilance, and lifelink.
−2: Put a +1/+1 counter on each creature you control and a loyalty counter on each other planeswalker you control.
−7: You get an emblem with “If a source would deal damage to you or a planeswalker you control, prevent all but 1 of that damage.”

Forbidden Alchemy

Look at the top four cards of your library. Put one of them into your hand and the rest into your graveyard.
Flashback (You may cast this card from your graveyard for its flashback cost. Then exile it.)

Heavy Arbalest

Equipped creature doesn’t untap during its controller’s untap step.
Equipped creature has “: This creature deals 2 damage to any target.”
Equip

Archon of the Triumvirate

Flying
Whenever Archon of the Triumvirate attacks, detain up to two target nonland permanents your opponents control. (Until your next turn, those permanents can’t attack or block and their activated abilities can’t be activated.)

Forbidden Alchemy

Look at the top four cards of your library. Put one of them into your hand and the rest into your graveyard.
Flashback (You may cast this card from your graveyard for its flashback cost. Then exile it.)

Lazav, Dimir Mastermind

Hexproof
Whenever a creature card is put into an opponent’s graveyard from anywhere, you may have Lazav, Dimir Mastermind become a copy of that card, except its name is Lazav, Dimir Mastermind, it’s legendary in addition to its other types, and it has hexproof and this ability.

Mycosynth Wellspring

When Mycosynth Wellspring enters the battlefield or is put into a graveyard from the battlefield, you may search your library for a basic land card, reveal it, put it into your hand, then shuffle your library.

Ember Beast

Ember Beast can’t attack or block alone.

Barrage Ogre

, Sacrifice an artifact: Barrage Ogre deals 2 damage to any target.

Mycosynth Wellspring

When Mycosynth Wellspring enters the battlefield or is put into a graveyard from the battlefield, you may search your library for a basic land card, reveal it, put it into your hand, then shuffle your library.

Heavy Arbalest

Equipped creature doesn’t untap during its controller’s untap step.
Equipped creature has “: This creature deals 2 damage to any target.”
Equip

Séance

At the beginning of each upkeep, you may exile target creature card from your graveyard. If you do, create a token that’s a copy of that card, except it’s a Spirit in addition to its other types. Exile it at the beginning of the next end step.

Cackling Counterpart

Create a token that’s a copy of target creature you control.
Flashback (You may cast this card from your graveyard for its flashback cost. Then exile it.)