Goblin Welder + Esper Sojourners + Dross Scorpion + Liquimetal Torque

Prerequisites

• Goblin Welder does not have summoning sickness.

Steps

1. 1Activate Liquimetal Torque's second ability by tapping it, causing Goblin Welder to become an artifact in addition to its other types until end of turn.
2. 2Activate Goblin Welder by tapping it, sacrificing Dross Scorpion and returning Esper Sojourners from your graveyard to the battlefield.
3. 3Dross Scorpion triggers, untapping Goblin Welder.
4. 4Activate Goblin Welder by tapping it, sacrificing Esper Sojourners and returning Dross Scorpion from your graveyard to the battlefield.
5. 5Esper Sojourners triggers, untapping Goblin Welder.
6. 6Repeat from step 2.

Effects

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