Hollowhenge Scavenger

Morbid — When Hollowhenge Scavenger enters the battlefield, if a creature died this turn, you gain 5 life.

Skirsdag Cultist

, , Sacrifice a creature: Skirsdag Cultist deals 2 damage to any target.

Falkenrath Noble

Flying
Whenever Falkenrath Noble or another creature dies, target player loses 1 life and you gain 1 life.

Memory’s Journey

Target player shuffles up to three target cards from their graveyard into their library.
Flashback (You may cast this card from your graveyard for its flashback cost. Then exile it.)

Selfless Cathar

, Sacrifice Selfless Cathar: Creatures you control get +1/+1 until end of turn.

Flametongue Kavu

When Flametongue Kavu enters the battlefield, it deals 4 damage to target creature.