Felidar Guardian, Vesperlark, and Bartolomé del Presidio

Prerequisites

• Felidar Guardian in hand
• Vesperlark on the battlefield
• Bartolomé del Presidio on the battlefield
• available

Steps

1. Cast Felidar Guardian by paying
2. When Felidar Guardian enters the battlefield, it triggers, targeting Vesperlark
3. Holding priority, activate Bartolomé del Presidio by sacrificing Felidar Guardian
4. Resolve the Felidar Guardian trigger, blinking Vesperlark
5. When Vesperlark leaves the battlefield, it triggers, returning Felidar Guardian from your graveyard to the battlefield
6. Repeat from step 2

Results

• Infinite LTB
• Infinite ETB
• Infinite sacrifice triggers
• Infinite +1/+1 counters on Bartolomé del Presidio
• Infinite death triggers