Healer's Hawk

Flying
Lifelink (Damage dealt by this creature also causes you to gain that much life.)

Hunted Witness

When this creature dies, create a 1/1 white Soldier creature token with lifelink.

Surveilling Sprite

Flying
When this creature dies, you may draw a card.

Unexpected Fangs

Put a +1/+1 counter and a lifelink counter on target creature.

Tattered Mummy

When this creature dies, each opponent loses 2 life.

Banehound

Accursed Centaur

When this creature enters, sacrifice a creature.

Carrion Feeder

This creature can't block.
Sacrifice a creature: Put a +1/+1 counter on this creature.

Vault Skirge

({B/P} can be paid with either {B} or 2 life.)
Flying
Lifelink (Damage dealt by this creature also causes you to gain that much life.)

Glint Hawk

Flying
When this creature enters, sacrifice it unless you return an artifact you control to its owner's hand.

Shambling Ghast

When this creature dies, choose one —
• Target creature an opponent controls gets -1/-1 until end of turn.
• Create a Treasure token. (It's an artifact with "{T}, Sacrifice this token: Add one mana of any color.")