Goblin Welder, Thornbite Staff, and Wurmcoil Engine

Prerequisites

• Goblin Welder on the battlefield
• Thornbite Staff on the battlefield
• Wurmcoil Engine in the graveyard
• Thornbite Staff attached to Goblin Welder
• You control a nontoken artifact creature
• Goblin Welder does not have summoning sickness

Steps

1. Tap Goblin Welder, targeting the artifact creature on the battlefield and Wurmcoil Engine in your graveyard
2. The artifact creature is sacrificed and Wurmcoil Engine enters the battlefield
3. Goblin Welder triggers, untapping itself
4. Activate Goblin Welder again, targeting the artifact creature in your graveyard and Wurmcoil Engine on the battlefield
5. The artifact creature returns to the battlefield and Wurmcoil Engine is sacrificed
6. Goblin Welder triggers, untapping itself
7. Wurmcoil Engine triggers, creating 2 Wurm creature tokens
8. Repeat for infinite creature tokens

Results

• Infinite creature tokens
• Infinite death triggers
• Infinite ETB
• Infinite LTB
• Infinite sacrifice triggers