Rosie Cotton of South Lane + Animation Module + Ashnod's Altar

Prerequisites

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

Steps

1. 1Put a +1/+1 counter on a creature you control.
2. 2Animation Module triggers, causing you to pay to create a 1/1 Servo artifact creature token.
3. 3Rosie triggers, targeting any creature except the Servo.
4. 4Holding priority, activate Ashnod's Altar by sacrificing the Servo, adding .
5. 5Resolve the Rosie ability, putting a +1/+1 counter on the targeted creature.
6. 6Repeat from step 2.

Effects

• Infinite +1/+1 counters on most creatures you control
• Infinite colorless mana
• Infinite creature tokens
• Infinite death triggers
• Infinite ETB
• Infinite LTB
• Infinite sacrifice triggers