Rat King, Verminister, Thornbite Staff, Belonging, and Bartolomé del Presidio

Prerequisites

• Rat King, Verminister on the battlefield
• Thornbite Staff on the battlefield
• Belonging in hand
• Bartolomé del Presidio on the battlefield
• available

Steps

1. Cast Belonging by paying
2. When Belonging enters, it triggers, creating three 1/1 Shapeshifter creature tokens with changeling
3. Activate Bartolomé del Presidio by sacrificing Belonging
4. When Belonging dies, Rat King triggers, untapping Rat King
5. Resolve the Bartolomé del Presidio ability
6. Activate Rat King by tapping it and sacrificing the Shapeshifters
7. When the Shapeshifters die, Rat King triggers three times, untapping Rat King
8. Resolve the Rat King ability from step 5, returning Belonging from your graveyard to the battlefield
9. Repeat from step 2

Results

• Infinite +1/+1 counters on a creature
• Infinite ETB
• Infinite LTB
• Infinite death triggers
• Infinite sacrifice triggers