Ketramose, the New Dawn, Containment Construct, Noose Constrictor, and Sheoldred, the Apocalypse

Prerequisites

• Ketramose, the New Dawn on the battlefield
• Containment Construct on the battlefield
• Noose Constrictor on the battlefield
• Sheoldred, the Apocalypse on the battlefield
• You have a card in hand
• Your life total is at least 2

Steps

1. Activate Noose Constrictor by discarding a card
2. Containment Construct triggers, exiling the discarded card with the ability to play it until end of turn
3. Ketramose triggers, causing you to draw a card and lose 1 life
4. Sheoldred triggers, causing you to gain 2 life
5. Resolve the Noose Constrictor ability
6. Repeat

Results

• Infinite self-discard triggers
• Near-infinite lifegain
• Near-infinite lifegain triggers
• Infinite draw triggers
• Near-infinitely large Noose Constrictor until end of turn
• Exile your library with the ability to play the exiled cards until end of turn