Necrotic Ooze, Whisper, Blood Liturgist, Altar Golem, Abhorrent Overlord, and Marionette Master

Prerequisites

• Necrotic Ooze on the battlefield
• Whisper, Blood Liturgist in the graveyard
• Altar Golem in the graveyard
• Abhorrent Overlord in the graveyard
• Marionette Master in the graveyard
• At least two additional creatures on the battlefield under your control
• You have at least one additonal devotion to black that isn't from a creature you will need to sacrifice
• Necrotic Ooze does not have summoning sickness

Steps

1. Tap Necrotic Ooze using Whisper, Blood Liturgist's ability to sacrifice two creatures and return Abhorrent Overlord to battlefield
2. Abhorrent Overlord's ETB triggers, creating at least 5 creature tokens
3. Using Altar Golem's ability, tap Abhorrent Overlord and 4 tokens to untap Necrotic Ooze
4. Tap Necrotic Ooze and sacrifice Abhorrent Overlord and a tapped token to Whisper's ability to return Marionetter Master to the battlefield, creating 3 Servo tokens
5. Tap Marionette Master and the 4 untapped tokens to untap Necrotic Ooze
6. Sacrifice Marionetter Master and a Servo token, causing target opponent to lose 1 life and reanimating Abhorrent Overlord
7. Repeat from step 2 for infinite life loss

Results

• Infinite death triggers
• Infinite ETB
• Infinite lifeloss
• Infinite LTB
• Infinite sacrifice triggers
• Infinite tapped creature tokens