Athreos, Shroud-Veiled, Blue, Loyal Raptor, and Bartolomé del Presidio

Prerequisites

• Athreos, Shroud-Veiled on the battlefield
• Blue, Loyal Raptor on the battlefield
• Bartolomé del Presidio on the battlefield

Steps

1. Cast the Dinosaur in your hand by paying its mana cost
2. It will enter with a coin counter due to Blue
3. Activate Bartolomé del Presidio by sacrificing the Dinosaur
4. When the Dinosaur dies, Athreos's second ability triggers, returning the Dinosaur from your graveyard to the battlefield
5. It will enter with a coin counter due to Blue
6. Resolve the Bartolomé del Presidio ability
7. Repeat from step 2

Results

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