Kairi, the Swirling Sky + Phyrexian Altar + Undying Malice

Mana needed: {B}

UB identity

Commander legal

The 3 combo pieces

• Kairi, the Swirling Sky
• Phyrexian Altar
• Undying Malice

How to execute it

1. Cast Undying Malice by paying {B}, targeting Kairi.
2. Activate Phyrexian Altar by sacrificing Kairi, adding {B}.
3. Kairi dies, triggering its ability granted by Undying Malice and its other ability.
4. Resolve the first Kairi trigger, returning it from your graveyard to the battlefield tapped with a +1/+1 counter on it.
5. Resolve the second Kairi trigger, causing you to mill six cards and return Undying Malice from your graveyard to your hand.
6. Repeat.

What the combo produces

• Infinite creature LTB
• Infinite death triggers
• Infinite ETB
• Infinite magecraft triggers
• Infinite sacrifice triggers
• Infinite self-mill
• Infinite storm count
• Return all instant and sorcery cards from your graveyard to your hand