Battlefield Promotion

Put a +1/+1 counter on target creature. That creature gains first strike until end of turn. You gain 2 life. (A creature with first strike deals combat damage before creatures without first strike.)

Ritual of Rejuvenation

Moment of Craving

Target creature gets -2/-2 until end of turn. You gain 2 life.

Scrounger of Souls

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

Child of Night

Aid the Fallen

Choose one or both —
• Return target creature card from your graveyard to your hand.
• Return target planeswalker card from your graveyard to your hand.

Plains

Epicure of Blood

Whenever you gain life, each opponent loses 1 life.

Swamp

Skymarch Bloodletter

Flying
When Skymarch Bloodletter enters, target opponent loses 1 life and you gain 1 life.

Take Heart

Target creature gets +2/+2 until end of turn. You gain 1 life for each attacking creature you control.

Impassioned Orator

Whenever another creature you control enters, you gain 1 life.

Thirsting Shade

Lifelink
{2}{B}: Thirsting Shade gets +1/+1 until end of turn.

Anointer Priest

Whenever a creature token you control enters, you gain 1 life.
Embalm {3}{W} ({3}{W}, Exile this card from your graveyard: Create a token that's a copy of it, except it's a white Zombie Human Cleric with no mana cost. Embalm only as a sorcery.)

Healer's Hawk

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

Attended Knight

First strike
When Attended Knight enters, create a 1/1 white Soldier creature token.