Lord Skitter, Sewer King, Void Attendant, Earthcraft, and Arcane Adaptation

Prerequisites

• Lord Skitter, Sewer King on the battlefield
• Void Attendant on the battlefield
• Earthcraft on the battlefield
• Arcane Adaptation on the battlefield
• An opponent has a card in exile
• You control a basic Forest
• "Rat" chosen with Arcane Adaptation
• available

Steps

1. Activate a basic Forest by tapping it, adding
2. Activate Void Attendant by paying and putting a card an opponent owns from exile into their graveyard, creating a 1/1 Eldrazi Scion creature token
3. When the Eldrazi Scion enters the battlefield as a Rat due to Arcane Adaptation, Lord Skitter's first ability triggers, exiling a card from an opponent's graveyard
4. Activate Earthcraft by tapping the Eldrazi Scion, untapping a basic Forest you control
5. Activate the Eldrazi Scion by sacrificing it, adding
6. Repeat

Results

• Infinite death triggers
• Infinite ETB
• Infinite LTB
• Infinite sacrifice triggers