({R} magic symbol) ({R} magic symbol) ({R} magic symbol) , plus an additional ({U} magic symbol) ({U} magic symbol) or ({R} magic symbol) ({R} magic symbol) ({R} magic symbol) ({R} magic symbol) available available.
Steps
Cast
Apex of Power by paying ({R} magic symbol) ({R} magic symbol) ({R} magic symbol) , exiling the top seven cards of your library with the ability to cast them until end of turn, and adding either ten ({U} magic symbol) or ten ({R} magic symbol) .
Cast
Mystic Retrieval by paying ({U} magic symbol) , returning
Apex of Power from your graveyard to your hand.
Cast
Mystic Retrieval from your graveyard for its flashback cost by paying ({R} magic symbol) , returning
Runic Repetition from your graveyard to your hand and exiling
Mystic Retrieval.
Cast
Runic Repetition by paying ({U} magic symbol) , returning
Mystic Retrieval from exile to your hand.
Repeat.
Results
Cast all spells in your library.
Infinite colored mana.
Infinite magecraft triggers.
Infinite mana permanents you control can produce.
Infinite storm count.
Metadata
In 67 decks according to EDHREC.
Bracket Tag
This combo has been estimated to be Exhibition (Bracket 1+).