When Arrogant Outlaw enters the battlefield, if an opponent lost life this turn, each opponent loses 2 life and you gain 2 life.

Defender When Barrier of Bones enters the battlefield, surveil 1. (Look at the top card of your library. You may put that card into your graveyard.)

Lifelink

Pay 1 life: Cutthroat Contender gets +1/+0 until end of turn. Activate only once each turn.

{1}{B}, Sacrifice an artifact or creature: Draw a card.

When Doomed Dissenter dies, create a 2/2 black Zombie creature token.

Whenever you gain life, each opponent loses 1 life.

Deathtouch

Whenever a creature an opponent controls dies, put a +1/+1 counter on Malakir Cullblade.

Whenever you gain life, each opponent loses 1 life.

Whenever one or more other creatures die, draw a card. This ability triggers only once each turn.

Whenever an opponent loses life, you gain that much life.

Target creature gets -1/-1 until end of turn. It gets an additional -1/-1 until end of turn for each card named Compound Fracture in your graveyard.

Until end of turn, target creature gets +2/+0 and gains "When this creature dies, return it to the battlefield tapped under its owner's control and you create a Treasure token." (It's an artifact with "{T}, Sacrifice this artifact: Add one mana of any color.")

Destroy target creature. You lose 2 life.

({T}: Add {B}.)

{T}: Add {B}. Channel — {3}{B}, Discard Takenuma, Abandoned Mire: Mill three cards, then return a creature or planeswalker card from your graveyard to your hand. This ability costs {1} less to activate for each legendary creature you control.