Missy, Phyrexian Altar, and Ire Shaman

Prerequisites

• Missy on the battlefield
• Phyrexian Altar on the battlefield
• Ire Shaman on the battlefield

Steps

1. Activate Phyrexian Altar by sacrificing Ire Shaman, adding
2. When Ire Shaman dies, Missy's first ability triggers, returning Ire Shaman from your graveyard to the battlefield face down as a 2/2 Cyberman artifact creature
3. Activate Ire Shaman's morph ability by paying , turning it face up and putting a +1/+1 counter on it
4. Ire Shaman triggers, exiling the top card of your library with the ability to play it this turn
5. Repeat

Results

• Exile your library
• Infinite death triggers
• Infinite ETB
• Infinite LTB
• Infinite sacrifice triggers