Enduring Renewal, Crimson Kobolds, Intruder Alarm, and Gríma Wormtongue

Prerequisites

• Enduring Renewal on the battlefield
• Crimson Kobolds on the battlefield
• Intruder Alarm on the battlefield
• Gríma Wormtongue on the battlefield
• Grima Wormtongue does not have summoning sickness

Steps

1. Activate Grima Wormtongue by tapping it and sacrificing Crimson Kobolds
2. When Crimson Kobolds dies, Enduring Renewal triggers, returning Crimson Kobolds from your graveyard to your hand
3. Resolve the Grima Wormtongue ability, causing target player to lose 1 life
4. Cast Crimson Kobolds by paying
5. Repeat

Results

• Infinite death triggers
• Infinite ETB
• Infinite lifeloss
• Infinite LTB
• Infinite sacrifice triggers
• Infinite storm count