Phyrexian Altar + Rise of the Dark Realms + Skullwinder

Mana needed: {7}{B} at most

BG identity

Commander legal

The 3 combo pieces

• Phyrexian Altar
• Rise of the Dark Realms
• Skullwinder

What must be in place

The number of nontoken creatures you control plus the number of creature cards in all graveyards is at least nine.

How to execute it

1. Activate Phyrexian Altar twice by sacrificing Skullwinder, adding {B}.
2. Repeat step 1 for each other nontoken creature you control.
3. Cast Rise of the Dark Realms by paying {7}{B}{B}, returning all creature cards from all graveyards to the battlefield under your control.
4. When Skullwinder enters the battlefield, it triggers, returning Rise of the Dark Realms to your hand from your graveyard and causing an opponent to return a card to their hand from their graveyard.
5. Repeat.

What the combo produces

• Infinite colored mana
• Infinite creature LTB
• Infinite death triggers
• Infinite ETB
• Infinite magecraft triggers
• Infinite sacrifice triggers
• Infinite storm count
• Return all creature cards from all graveyards to the battlefield under your control
• Target opponent returns all cards in their graveyard to their hand