Cormela, Glamour Thief, Demonic Gifts, Birgi, God of Storytelling // Harnfel, Horn of Bounty, and Altar of Dementia

Prerequisites

• Cormela, Glamour Thief on the battlefield
• Demonic Gifts in hand
• Birgi, God of Storytelling // Harnfel, Horn of Bounty on the battlefield
• Altar of Dementia on the battlefield
• available

Steps

1. Activate Cormela by paying and tapping it, adding that can only be spent to cast instant or sorcery spells
2. Cast Demonic Gifts by paying , targeting Cormela
3. Birgi triggers, adding
4. Resolve Demonic Gifts
5. Activate Altar of Dementia by sacrificing Cormela
6. When Cormela dies, it triggers twice
7. Resolve the first trigger, returning Cormela from your graveyard to the battlefield
8. Resolve the second trigger, returning Demonic Gifts from your graveyard to your hand
9. Resolve the Altar of Dementia ability, causing target player to mill cards equal to Cormela's power
10. Repeat

Results

• Infinite blue mana that can only be spent to cast instant and sorcery spells
• Infinite death triggers
• Infinite ETB
• Infinite LTB
• Infinite magecraft triggers
• Infinite mill
• Infinite red mana that can only be spent to cast instant and sorcery spells
• Infinite sacrifice triggers
• Infinite self-mill
• Infinite storm count