Metalwork Colossus, The Ooze, Arcbound Ravager, and Arwen, Weaver of Hope

Prerequisites

• Metalwork Colossus in hand
• The Ooze on the battlefield
• Arcbound Ravager on the battlefield
• Arwen, Weaver of Hope on the battlefield

Steps

1. Cast Metalwork Colossus by paying , which enters with at least two +1/+1 counters on it due to Arwen
2. Activate Arcbound Ravager by sacrificing Metalwork Colossus
3. When Metalwork Colossus dies, The Ooze triggers, creating a Mutagen token for each +1/+1 counter Metalwork Colossus had
4. Resolve the Arcbound Ravager ability
5. Activate Metalwork Colossus by sacrificing two Mutagens, returning it from your graveyard to your hand
6. Repeat

Results

• Infinite Mutagen tokens
• Infinite death triggers
• Infinite sacrifice triggers
• Infinite storm count
• Infinite +1/+1 counters on a creature
• Infinite ETB
• Infinite LTB