Slobad, Iron Goblin + Thornbite Staff + Myr Retriever + Workshop Assistant

Prerequisites

• Slobad does not have summoning sickness.
• Thornbite Staff attached to Slobad.

Steps

1. 1Activate Slobad by tapping it and sacrificing Workshop Assistant, adding that can only be spent to activate abilities of artifacts or to cast artifact spells.
2. 2Workshop Assistant dies, triggering itself and Slobad.
3. 3Resolve the Workshop Assistant trigger, returning Myr Retriever from your graveyard to your hand.
4. 4Resolve the Slobad trigger, untapping it.
5. 5Cast Myr Retriever by paying .
6. 6Activate Slobad by tapping it and sacrificing Myr Retriever, adding that can only be spent to activate abilities of artifacts or to cast artifact spells.
7. 7Myr Retriever dies, triggering itself and Slobad.
8. 8Resolve the Myr Retriever trigger, returning Workshop Assistant from your graveyard to your hand.
9. 9Resolve the Slobad trigger, untapping it.
10. 10Cast Workshop Assistant by paying .
11. 11Repeat.

Effects

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