Ketramose, the New Dawn, Necropotence, and Shabraz, the Skyshark

Prerequisites

• Ketramose, the New Dawn on the battlefield
• Necropotence on the battlefield
• Shabraz, the Skyshark on the battlefield
• Your life total is at least 2
• You have at least one more card in hand than your maximum hand size

Steps

1. Proceed to your cleanup step, causing you to discard cards down to your maximum hand size
2. Necropotence triggers for each card discarded
3. Resolve the first trigger, exiling the discarded card from your graveyard
4. Ketramose triggers, causing you to draw a card and lose 1 life
5. Shabraz triggers, causing you to gain 1 life and put a +1/+1 counter on Shabraz
6. Discard cards down until your maximum hand size, as the cleanup step is still onging
7. Repeat from step 2

Results

• Infinite self-discard triggers
• Near-infinite lifegain triggers
• Infinite draw triggers
• Exile your library
• Near-infinite +1/+1 counters on Shabraz