Kolodin, Triumph Caster, Salvaging Station, Extruder, and Clown Car

Prerequisites

• Kolodin, Triumph Caster on the battlefield
• Salvaging Station on the battlefield
• Extruder on the battlefield
• Clown Car in the graveyard

Steps

1. Activate Salvaging Station by tapping it, returning Clown Car from your graveyard to the battlefield
2. When Clown Car enters, Kolodin triggers, causing Clown Car to become an artifact creature until end of turn
3. Activate Extruder by sacrificing Clown Car
4. When Clown Car dies, Salvaging Station triggers, untapping Salvaging Station
5. Resolve the Extruder ability
6. Repeat

Results

• Infinite +1/+1 counters on creatures you control
• Infinite LTB
• Infinite death triggers
• Infinite sacrifice triggers