Disa the Restless, Cloudstone Curio, and Witch-king of Angmar

Prerequisites

• Disa the Restless on the battlefield
• Cloudstone Curio on the battlefield
• Witch-king of Angmar on the battlefield
• You control at least one nontoken nonartifact Lhurgoyf
• You have at least one nonartifact Lhurgoyf creature card in hand

Steps

1. Activate Witch-king of Angmar by discarding a nonartifact Lhurgoyf card
2. Disa the Restless' first ability triggers, putting the discarded Lhurgoyf from your graveyard onto the battlefield
3. When the Lhurgoyf enters the battlefield, Cloudstone Curio triggers, returning another nontoken nonartifact Lhurgoyf from the battlefield to your hand
4. Resolve the Witch-king of Angmar ability from step 1
5. Repeat

Results

• Infinite ETB
• Infinite LTB
• Infinite self-discard triggers