Overwhelming Splendor + Eater of Days + Oath of Teferi + Tamiyo, Collector of Tales + Fractured Identity

Prerequisites

• Overwhelming Splendor attached to you.
• Tamiyo, Collector of Tales has at least three loyalty counters.

Steps

1. 1Cast Fractured Identity by paying , exiling Eater of Days and creating a token copy under each opponent's control.
2. 2Each Eater of Days enters the battlefield, triggering itself, causing each opponent to skip their next two turns.
3. 3Activate Tamiyo's first loyalty ability by putting a loyalty counter on it, choosing any card name.
4. 4Activate Tamiyo's second loyalty ability by removing three loyalty counters from it, returning Fractured Identity from your graveyard to your hand.
5. 5Move to your next turn.
6. 6Cast Fractured Identity by paying , exiling an opponent's Eater of Days token, creating a copy with no abilities under your control and a copy with abilities under each other opponent's control.
7. 7Each new Eater of Days not controlled by you enters the battlefield, triggering itself, causing its controller to skip their next two turns.
8. 8Activate Tamiyo's first loyalty ability twice by putting two loyalty counters on it, choosing any card names.
9. 9Move to your next turn.
10. 10Activate Tamiyo's first loyalty ability by putting a loyalty counter on it, choosing any card name.
11. 11Activate Tamiyo's second loyalty ability by removing three loyalty counters from it, returning Fractured Identity from your graveyard to your hand.
12. 12Cast Fractured Identity by paying , exiling an Eater of Days you control, or, if you control none, an Eater of Days not controlled by the opponent with the fewest skipped turns remaining, exiling it and creating a copy under each other player's control.
13. 13Each new Eater of Days not controlled by you enters the battlefield, triggering itself, causing its controller to skip their next two turns.
14. 14Move to your next turn.
15. 15Repeat from step 8 until each opponent has skipped turns equal to four times the number of opponents you have.
16. 16The player of your choice takes a turn.
17. 17Repeat from step 15.

Effects

• Lock
• Near-infinite turns