Slogurk, the Overslime, Primal Prayers, Birgi, God of Storytelling // Harnfel, Horn of Bounty, and Aetherstorm Roc

Prerequisites

• Slogurk, the Overslime on the battlefield
• Primal Prayers on the battlefield
• Birgi, God of Storytelling // Harnfel, Horn of Bounty on the battlefield
• Aetherstorm Roc on the battlefield

Steps

1. Activate Harnfel by discarding a land card
2. Slogurk triggers, putting a +1/+1 counter on it
3. Resolve the Harnfel ability
4. Repeat from step 1 two additional times
5. Activate Slogurk by removing three +1/+1 counters from it, returning it from the battlefield to your hand
6. When Slogurk leaves the battlefield, it triggers, returning three land cards from your graveyard to your hand
7. Cast Slogurk by paying due to Primal Prayers
8. When Slogurk enters, Aetherstorm Roc triggers, causing you to get
9. Repeat

Results

• Infinite LTB
• Infinite ETB
• Infinite storm count
• Infinite self-discard triggers
• Exile your library with the ability to play the exiled cards until end of turn