Cloakwood Swarmkeeper + Animation Module + Phyrexian Altar

Prerequisites

• You have a way to cause a token to enter the battlefield under your control.

Steps

1. 1Cause a token to enter the battlefield under your control.
2. 2The token enters the battlefield, triggering Cloakwood Swarmkeeper, putting a +1/+1 counter on Cloakwood Swarmkeeper.
3. 3Animation Module triggers.
4. 4Holding priority, activate Phyrexian Altar by sacrificing the token, adding .
5. 5Resolve the Animation Module trigger, causing you to pay to create a 1/1 Servo artifact creature token.
6. 6Repeat from step 2.

Effects

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