Whisper, Blood Liturgist + Necrotic Ooze + Black Carriage + Marionette Master

Prerequisites

• Necrotic Ooze does not have summoning sickness.You control at least two additional creatures.

Steps

1. 1During your upkeep, activate Necrotic Ooze using Whisper's ability by tapping it and sacrificing two other creatures, returning Marionette Master from your graveyard to the battlefield.
2. 2Marionette Master enters the battlefield, creating three 1/1 Servo artifact creature tokens.
3. 3Activate Necrotic Ooze using Black Carriage's ability by sacrificing Marionette Master, untapping Necrotic Ooze.
4. 4Repeat an arbitrarily large number of times.
5. 5With Marionette Master on the battlefield, activate Necrotic Ooze using Black Carriage's ability by sacrificing a Servo, untapping Necrotic Ooze.
6. 6The Servo dies, triggering Marionette Master, causing each opponent to lose life equal to Marionette Master's power.
7. 7Repeat from step 5.

Effects

• Infinite creature ETB
• Infinite creature LTB
• Infinite creature sacrifice triggers
• Infinite creature tokens
• Infinite death triggers
• Infinite lifeloss
• Return all creature cards from your graveyard to the battlefield