Deekah, Fractal Theorist + Essence Flux + Phyrexian Altar + Skullwinder

Mana needed: {U}

GU identity

Commander legal

The 4 combo pieces

• Deekah, Fractal Theorist
• Essence Flux
• Phyrexian Altar
• Skullwinder

How to execute it

1. Cast Essence Flux by paying {U}.
2. Deekah triggers, creating a 0/0 Fractal creature token that enters with a +1/+1 counter on it.
3. Resolve Essence Flux, blinking Skullwinder.
4. Skullwinder enters the battlefield, returning Essence Flux from your graveyard to your hand and causing target opponent to return a card from their graveyard to their hand.
5. Activate Phyrexian Altar by sacrificing the Fractal, adding {U}.
6. Repeat.

What the combo produces

• Infinite creature LTB
• Infinite death triggers
• Infinite ETB
• Infinite magecraft triggers
• Infinite sacrifice triggers
• Infinite storm count
• Target opponent returns all cards in their graveyard to their hand