Goblin Welder, Unbender Tine, and Esper Sojourners

Prerequisites

• Goblin Welder on the battlefield
• Unbender Tine in the graveyard
• Esper Sojourners on the battlefield
• Goblin Welder does not have summoning sickness

Steps

1. Activate Goblin Welder by tapping it, sacrificing Esper Sojourners and returning Unbender Tine from your graveyard to the battlefield
2. Esper Sojourners triggers, untapping Goblin Welder
3. Activate Unbender Tine by tapping it
4. Holding priority, activate Goblin Welder by tapping it, sacrificing Unbender Tine and returning Esper Sojourners from your graveyard to the battlefield
5. Resolve the Unbender Tine trigger from step 3, untapping Goblin Welder
6. Repeat

Results

• Infinite death triggers
• Infinite ETB
• Infinite LTB
• Infinite sacrifice triggers