Animation Module, Scion of the Swarm, Ashnod's Altar, and Dross Harvester

Prerequisites

• Animation Module on the battlefield
• Scion of the Swarm on the battlefield
• Ashnod's Altar on the battlefield
• Dross Harvester on the battlefield
• You control at least one additional creature

Steps

1. Activate Ashnod's Altar by sacrificing another creature, adding
2. When the creature dies, Dross Harverster's second ability triggers, causing you to gain 2 life
3. Scion of the Swarm triggers, putting a +1/+1 counter on itself
4. Animation Module triggers, causing you to pay to create a 1/1 Servo artifact creature token
5. Repeat

Results

• Infinite +1/+1 counters on Scion of the Swarm
• Infinite colorless mana
• Infinite death triggers
• Infinite ETB
• Infinite lifegain
• Infinite lifegain triggers
• Infinite LTB
• Infinite sacrifice triggers