Kotis, Sibsig Champion + Altar of Dementia + Pinnacle Monk // Mystic Peak

Kotis, Sibsig Champion

Altar of Dementia

Pinnacle Monk // Mystic Peak

How it works

1. Cast the extra turn spell by paying its mana cost, causing you to take an extra turn after this one.
2. Move to your extra turn.
3. Activate Altar of Dementia by sacrificing Pinnacle Monk, causing you to mill cards equal to Pinnacle Monk's power.
4. Cast Pinnacle Monk from your graveyard by paying its mana cost and exiling three other cards from your graveyard, ensuring not to exile the extra turn spell.
5. When Pinnacle Monk enters the battlefield, it triggers, returning the extra turn spell from your graveyard to your hand.
6. Repeat.