Eirdu, Carrier of Dawn // Isilu, Carrier of Twilight, Sporeback Troll, and Blessed Sanctuary

Prerequisites

• Eirdu, Carrier of Dawn // Isilu, Carrier of Twilight on the battlefield
• Sporeback Troll on the battlefield
• Blessed Sanctuary on the battlefield

Steps

1. Kill Sporeback Troll
2. When Sporeback Troll dies, its persist ability triggers, returning it from your graveyard to the battlefield with a +1/+1 counter on it due to its graft ability
3. When Sporeback Troll enters, Blessed Sanctuary triggers, creating a creature token
4. When the creature token enters, Sporeback Troll triggers, moving a +1/+1 counter from it to the creature token
5. Sporeback Troll dies as a state-based action due to having 0 toughness
6. Repeat from step 2

Results

• Infinite LTB
• Infinite ETB
• Infinite death triggers
• Infinite creature tokens