Animation Module + Cathars' Crusade + Phyrexian Altar

Prerequisites

• You have a way to put a +1/+1 counter on a creature you control.

Steps

1. 1Put a +1/+1 counter on any creature you control.
2. 2Animation Module triggers, causing you to pay to create a 1/1 Servo artifact creature token.
3. 3The Servo enters the battlefield, triggering Cathars' Crusade.
4. 4Holding priority, activate Phyrexian Altar by sacrificing the Servo, adding .
5. 5Resolve the Cathars' Crusade trigger, putting a +1/+1 on each creature you control.
6. 6Animation Module triggers for each +1/+1 counter placed this way.
7. 7Resolve all but one Animation Module trigger, choosing not to pay.
8. 8Resolve the final Animation Module trigger, causing you to pay to create a 1/1 Servo artifact creature token.
9. 9Repeat from step 3.

Effects

• Infinite +1/+1 counters on creatures you control
• Infinite death triggers
• Infinite ETB
• Infinite LTB
• Infinite sacrifice triggers