Captain Storm, Cosmium Raider, Lesser Masticore, Krark-Clan Ironworks, and Xenograft

Prerequisites

• Captain Storm, Cosmium Raider on the battlefield
• Lesser Masticore on the battlefield
• Krark-Clan Ironworks on the battlefield
• Xenograft on the battlefield
• Lesser Masticore does not have a -1/-1 counter on it

Steps

1. Activate Krark-Clan Ironworks by sacrificing Lesser Masticore, adding
2. When Lesser Masticore dies, its persist ability triggers, returning it from your graveyard to the battlefield with a -1/-1 counter on it
3. When Lesser Masticore enters the battlefield, Captain Storm triggers, putting a +1/+1 counter on Lesser Masticore
4. Repeat

Results

• Infinite LTB
• Infinite ETB
• Infinite sacrifice triggers
• Infinite death triggers
• Infinite colorless mana