Epicure of Blood

Whenever you gain life, each opponent loses 1 life.

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.)

Basilica Guards

Defender
Extort (Whenever you cast a spell, you may pay {W/B}. If you do, each opponent loses 1 life and you gain that much life.)

Arashin Cleric

When Arashin Cleric enters, you gain 3 life.

Ajani's Sunstriker

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