Triskelion, Scythe of the Wretched, and Pir, Imaginative Rascal

Prerequisites

• Triskelion on the battlefield
• Scythe of the Wretched on the battlefield
• Pir, Imaginative Rascal on the battlefield
• Scythe of the Wretched attached to Triskelion
• Triskelion has at least three +1/+1 counters on it

Steps

1. If Triskelion has more than 3 +1/+1 counters on it, activate Trislekion by removing all additional counters to deal damage to your choice of targets
2. Activate Triskelion's ability by removing a +1/+1 counter from it to deal 1 damage to itself
3. Repeat step 1 an additional 2 times, killing Triskelion
4. Scythe of the Wretched triggers, returning Triskelion to the battlefield with Scythe of the Wretched attached to it
5. Repeat

Results

• Infinite damage
• Infinite death triggers
• Infinite ETB
• Infinite LTB