Solemnity, and Woe Strider

Prerequisites

• Solemnity on the battlefield
• Woe Strider on the battlefield
• If a persist creature is used, it does not have a -1/-1 counter on it
• Otherwise, if an undying creature is used, it does not have a +1/+1 counter on it

Steps

1. Activate Woe Strider by sacrificing the persist or undying creature
2. When the creature dies, its persist or undying ability triggers, returning it from your graveyard to the battlefield without a -1/-1 counter or a +1/+1 counter on it due to Solemnity
3. Resolve the Woe Strider ability
4. Repeat

Results

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