Woodland Champion + Animation Module + Ashnod's 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 Woodland Champion.
4. 4Holding priority, activate Ashnod's Altar by sacrificing the Servo, adding .
5. 5Resolve the Woodland Champion trigger, putting a +1/+1 counter on it.
6. 6Repeat from step 2.

Effects

• Infinite +1/+1 counters on a creature
• Infinite colorless mana
• Infinite creature ETB
• Infinite creature LTB
• Infinite creature sacrifice triggers
• Infinite death triggers