Beacon of Tomorrow by paying ({6} magic symbol) ({U} magic symbol) ({U} magic symbol) , granting you an extra turn after this one and shuffling it into your library.
Activate
Isochron Scepter by paying ({2} magic symbol) and tapping it, casting
Mystical Tutor, putting
Beacon of Tomorrows on top of your library.
Move to your next turn.
Draw
Beacon of Tomorrows from the top of your library.
Repeat.
Results
Infinite turns.
Skip your draw steps.
Metadata
This combo produces a lock.
In 1355 decks according to EDHREC.
Bracket Tag
This combo has been estimated to be Ruthless (Bracket 4+).