Brotherhood Outcast, Bartolomé del Presidio, and Changing Loyalty

Prerequisites

• Brotherhood Outcast on the battlefield
• Bartolomé del Presidio on the battlefield
• Changing Loyalty on the battlefield

Steps

1. Activate Bartolomé del Presidio by sacrificing Brotherhood Outcast
2. When Brotherhood Outcast dies, Changing Loyalty triggers, returning Brotherhood Outcast from your graveyard to the battlefield
3. When Brotherhood Outcast enters the battlefield, it triggers, returning Changing Loyalty from your graveyard to the battlefield attached to Brotherhood Outcast
4. Resolve the Bartolomé del Presidio ability
5. Repeat

Results

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