Knights' Charge by paying ({6} magic symbol) ({W} magic symbol) ({B} magic symbol) and sacrificing it, returning all Knights from your graveyard to the battlefield.
Repeat.
Results
Infinite creature LTB.
Infinite creature ETB.
Infinite colored mana.
Infinite creature sacrifice triggers.
Infinite death triggers.
Infinite storm count.
Infinite recursion of Knights you control.
Metadata
In 257 decks according to EDHREC.
Bracket Tag
This combo has been estimated to be Exhibition (Bracket 1+).