Captain Storm, Cosmium Raider, Lesser Masticore, Phyrexian Altar, and Rukarumel, Biologist

Prerequisites

• Captain Storm, Cosmium Raider on the battlefield
• Lesser Masticore on the battlefield
• Phyrexian Altar on the battlefield
• Rukarumel, Biologist on the battlefield
• Lesser Masticore does not have a -1/-1 counter on it

Steps

1. Activate Phyrexian Altar by sacrificing Lesser Masticore, adding one mana of any color
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 colored mana
• Infinite sacrifice triggers
• Infinite death triggers