Magosi, the Waterveil + Out of the Tombs + Nesting Grounds

Prerequisites

• Magosi is untapped.

Steps

1. 1At the beginning of your upkeep, Out of the Tombs triggers, putting two eon counters on itself, then milling cards equal to the number of eon counters on it.
2. 2Activate Nesting Grounds by paying and tapping it, moving an eon counter from Out of the Tombs to Magosi.
3. 3Activate Magosi by tapping it, removing an eon counter from it, and returning it to your hand, causing you to take an extra turn after this one.
4. 4In your main phase, play Magosi.
5. 5Go to your next turn.
6. 6Repeat.

Effects

• Infinite turns
• Lock