Mikaeus, the Unhallowed, Woe Strider, and Carnifex Demon

Prerequisites

• Mikaeus, the Unhallowed on the battlefield
• Woe Strider on the battlefield
• Carnifex Demon on the battlefield

Steps

1. Activate Woe Strider by sacrificing Carnifex Demon
2. When Carnifex Demon dies, its undying ability triggers, returning it from your graveyard to the battlefield without a +1/+1 counter on it due to its replacement effect
3. Resolve the Woe Strider ability Repeat

Results

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