Arcbound Fiend + Eirdu, Carrier of Dawn // Isilu, Carrier of Twilight + Megatog

RWB identity

Commander legal

The 3 combo pieces

• Arcbound Fiend
• Eirdu, Carrier of Dawn // Isilu, Carrier of Twilight
• Megatog

How to execute it

1. Activate Megatog by sacrificing Arcbound Fiend.
2. When Arcbound Fiend dies, its modular ability and persist ability trigger.
3. Resolve the modular trigger, putting Arcbound Fiend's +1/+1 counters on another artifact creature.
4. Resolve the persist trigger, returning Arcbound Fiend from your graveyard to the battlefield. It will not have a -1/-1 counter on it due to its modular ability.
5. Resolve the Megatog ability.
6. Repeat.

What the combo produces

• Infinite +1/+1 counters on certain creatures
• Infinite creature LTB
• Infinite death triggers
• Infinite ETB
• Infinite sacrifice triggers
• Infinitely large creature until end of turn