Iridescent Drake + Kaya's Ghostform + Phyrexian Altar

UB identity

Commander legal

The 3 combo pieces

• Iridescent Drake
• Kaya's Ghostform
• Phyrexian Altar

How to execute it

1. Activate Phyrexian Altar by sacrificing Iridescent Drake.
2. When Iridescent Drake dies, Kaya's Ghostform triggers, returning Iridescent Drake from your graveyard to the battlefield.
3. When Iridescent Drake enters, it triggers, returning Kaya's Ghostform from your graveyard to the battlefield attached to Iridescent Drake
4. Repeat.

What the combo produces

• Infinite colored mana
• Infinite creature LTB
• Infinite death triggers
• Infinite ETB
• Infinite sacrifice triggers