Beacon of Tomorrows either from your hand or from exile by paying ({6} magic symbol) ({U} magic symbol) ({U} magic symbol) , causing you to take an extra turn after this one and shuffle
Beacon of Tomorrows into your library.
At the beginning of your end step,
Conjurer's Closet triggers, blinking
Hoarding Broodlord.
When
Hoarding Broodlord enters the battlefield, it triggers, searching your library for
Beacon of Tomorrows and exiling it.
Repeat each turn.
Results
Infinite turns.
Metadata
This combo produces a lock.
In 8 decks according to EDHREC.
Bracket Tag
This combo has been estimated to be Ruthless (Bracket 4+).