You have at least three additional cards in your graveyard.
Mana Needed
({4} magic symbol) ({R} magic symbol) available.
Steps
Cast
Path of the Pyromancer from your graveyard for its escape cost by paying ({4} magic symbol) ({R} magic symbol) and exiling three other cards from your graveyard, causing you to discard your hand, add ({R} magic symbol) for each card discarded this way, then draw a number of cards equal to the number of cards you discarded plus one.
Repeat.
Results
Infinite draw triggers.
Infinite rummaging.
Infinite self-discard triggers.
Near-infinite magecraft triggers.
Near-infinite red mana.
Near-infinite storm count.
Metadata
Bracket tag
SpicyBracket 3-4+
Probably 3 or 4, but hard to classify
1
2
3
4
5
1 · Exhibition5 · cEDH
Bracket tags are estimated from the cards and results of each combo, as a guideline rather than a strict classification.