Emeritus of Abundance // Regrowth

Prerequisites

• Emeritus of Abundance // Regrowth on the battlefield
• plus the cost of the extra turn spell each turn available

Steps

1. Cast the extra turn spell by paying its mana cost, causing you to take an extra turn after this one
2. Cast the copy of Regrowth from exile by paying and unpreparing Emeritus of Abundance, returning the extra turn card from your graveyard to your hand
3. Declare Emeritus of Abundance as an attacker, triggering it, causing it to become prepared
4. Repeat each turn

Results

• Infinite turns
• Lock