Captain Storm, Cosmium Raider + Lesser Masticore + Extruder + Rukarumel, Biologist

Prerequisites

• Lesser Masticore does not have a -1/-1 counter on it.
• "Pirate" chosen with Rukarumel, Biologist.

Steps

1. 1Activate Extruder by sacrificing Lesser Masticore.
2. 2When Lesser Masticore dies, its persist ability triggers, returning it from your graveyard to the battlefield with a -1/-1 counter on it.
3. 3When Lesser Masticore enters the battlefield, Captain Storm triggers, putting a +1/+1 counter on Lesser Masticore.
4. 4Resolve the Extruder ability.
5. 5Repeat.

Effects

• Infinite +1/+1 counters on creatures you control
• Infinite creature ETB
• Infinite creature LTB
• Infinite creature sacrifice triggers
• Infinite death triggers