Elesh Norn, Grand Cenobite, Grim Poppet, Painter's Servant, Antler Skulkin, and Krark-Clan Ironworks

Prerequisites

• Elesh Norn, Grand Cenobite on the battlefield
• Grim Poppet on the battlefield
• Painter's Servant on the battlefield
• Antler Skulkin on the battlefield
• Krark-Clan Ironworks on the battlefield
• "White" chosen with Painter's Servant
• available

Steps

1. Activate Grim Poppet by removing a -1/-1 counter from it, targeting another creature
2. Repeat until Grim Poppet has no -1/-1 counters on it
3. Activate Antler Skulkin by paying , giving Grim Poppet persist until end of turn
4. Activate Krark-Clan Ironworks by sacrificing Grim Poppet, adding
5. Grim Poppet dies, triggering its persist ability, returning it from your graveyard to the battlefield with a total of four -1/-1 counters on it
6. Repeat

Results

• Infinite -1/-1 counters
• Infinite death triggers
• Infinite ETB
• Infinite LTB
• Infinite sacrifice triggers