You control creatures that can deal at least six combat damage that cannot be blocked by an opponent.
Steps
Attack with the creatures to deal at least six combat damage to a player, triggering
Old Gnawbone's ability, creating at least six Treasure tokens.
Before the end of your combat phase, activate five Treasure tokens by tapping and sacrificing them, to add ({W} magic symbol) ({U} magic symbol) ({B} magic symbol) ({R} magic symbol) ({G} magic symbol) .
Activate
Najeela by paying ({W} magic symbol) ({U} magic symbol) ({B} magic symbol) ({R} magic symbol) ({G} magic symbol) to untap all creatures you control, give them trample, lifelink, and haste and to get an additional combat phase and an additional main phase after that.
End the combat phase.
Repeat.
Results
Infinite artifact ETB.
Infinite artifact LTB.
Infinite artifact sacrifice triggers.
Infinite artifact tokens.
Infinite creature tokens with haste.
Infinite colored mana.
Infinite combat phases.
Infinite lifegain.
Infinite lifegain triggers.
Infinite Treasure tokens.
Metadata
Bracket tag
SpicyBracket 3-4+
Probably 3 or 4, but hard to classify
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1 · Exhibition5 · cEDH
Bracket tags are estimated from the cards and results of each combo, as a guideline rather than a strict classification.