Altar Golem Combos
Altar Golem + Elemental Mastery
Altar Golem + Mayael's Aria + Storm Herd
Necrotic Ooze + Whisper, Blood Liturgist + Altar Golem
Combo result
Infinite life loss. Infinite tapped creature tokens. Infinite ETB. Infinite LTB. Infinite death triggers. Infinite sacrifice triggers.
Prerequisites
Necrotic Ooze on the battlefield. All other cards in graveyard. At least 2 additional creatures are on the battlefield under your control. You have at least 1 additonal devotion to black that isn't from a creature you will need to sacrifice. Necrotic Ooze does not have summoning sickness.