Requires

Overwhelming Splendor must be on the battlefield. Eater of Days must be on the battlefield. Oath of Teferi must be on the battlefield. Tamiyo, Collector of Tales must be on the battlefield. Fractured Identity must be in hand. Overwhelming Splendor attached to you. Tamiyo, Collector of Tales has at least three loyalty counters. Mana needed: each turn

Steps

1. Cast Fractured Identity by paying , exiling Eater of Days and creating a token copy under each opponent's control.
2. Each Eater of Days enters the battlefield, triggering itself, causing each opponent to skip their next two turns.
3. Activate Tamiyo's first loyalty ability by putting a loyalty counter on it, choosing any card name.
4. Activate Tamiyo's second loyalty ability by removing three loyalty counters from it, returning Fractured Identity from your graveyard to your hand.
5. Move to your next turn.
6. Cast 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. Each new Eater of Days not controlled by you enters the battlefield, triggering itself, causing its controller to skip their next two turns.
8. Activate Tamiyo's first loyalty ability twice by putting two loyalty counters on it, choosing any card names.
9. Move to your next turn.
10. Activate Tamiyo's first loyalty ability by putting a loyalty counter on it, choosing any card name.
11. Activate Tamiyo's second loyalty ability by removing three loyalty counters from it, returning Fractured Identity from your graveyard to your hand.
12. Cast 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. Each new Eater of Days not controlled by you enters the battlefield, triggering itself, causing its controller to skip their next two turns.
14. Move to your next turn.
15. Repeat from step 8 until each opponent has skipped turns equal to four times the number of opponents you have.
16. The player of your choice takes a turn.
17. Repeat from step 15.

Results