Cass, Hand of Vengeance, Woe Strider, and Gremlin Tamer

Prerequisites

• Cass, Hand of Vengeance on the battlefield
• Woe Strider on the battlefield
• Gremlin Tamer on the battlefield

Steps

1. Activate Woe Strider by sacrificing another creature that has an Aura attached to it
2. When the creature dies, Cass triggers, returning an Aura that was attached to the creature from your graveyard to the battlefield attached to another creature you control
3. When the Aura enters the battlefield, Gremlin Tamer triggers, creating a creature token
4. Resolve the Woe Strider ability
5. Repeat

Results

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