Antler Skulkin, Krark-Clan Ironworks, and Arcbound Shikari

Prerequisites

• Antler Skulkin on the battlefield
• Krark-Clan Ironworks on the battlefield
• Arcbound Shikari on the battlefield
• available

Steps

1. Activate Antler Skulkin by paying , giving Arcbound Shikari persist until end of turn
2. Activate Krark-Clan Ironworks by sacrificing Arcbound Shikari, adding
3. When Arcbound Shikari dies, its modular and persist abilities trigger
4. Resolve the modular trigger, putting all +1/+1 counters on Arcbound Shikari onto another artifact creature you control
5. Resolve the persist trigger, returning Arcbound Shikari from your graveyard to the battlefield with one +1/+1 counter on it due to its modular ability
6. When Arcbound Shikari enters the battlefield, it triggers, putting a +1/+1 counter on each other artifact creature you control
7. Repeat

Results

• Infinite +1/+1 counters on each artifact creature you control except Arcbound Shikari
• Infinite death triggers
• Infinite ETB
• Infinite LTB
• Infinite sacrifice triggers