Eirdu, Carrier of Dawn // Isilu, Carrier of Twilight, Woe Strider, and Arcbound Lancer

Prerequisites

• Eirdu, Carrier of Dawn // Isilu, Carrier of Twilight on the battlefield
• Woe Strider on the battlefield
• Arcbound Lancer on the battlefield

Steps

1. Activate Woe Strider by sacrificing Arcbound Lancer
2. When Arcbound Lancer dies, its modular ability and persist ability trigger
3. Resolve the modular trigger, putting Arcbound Lancer's +1/+1 counters on another artifact creature
4. Resolve the persist trigger, returning Arcbound Lancer from your graveyard to the battlefield
5. It will not have a -1/-1 counter on it due to its modular ability
6. Resolve the Woe Strider ability
7. Repeat

Results

• Infinite LTB
• Infinite ETB
• Infinite sacrifice triggers
• Infinite death triggers
• Infinite scry 1
• Infinite +1/+1 counters on artifact creatures you control