Athreos, Shroud-Veiled, Blue, Loyal Raptor, and Woe Strider

Prerequisites

• Athreos, Shroud-Veiled on the battlefield
• Blue, Loyal Raptor on the battlefield
• Woe Strider 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 Woe Strider 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 Woe Strider ability
7. Repeat from step 2

Results

• Infinite LTB
• Infinite ETB
• Infinite sacrifice triggers
• Infinite death triggers
• Infinite scry 1