Creatures you control can tap to produce at least .
Mana Needed
at least available.
Steps
Cast
Great Train Heist by paying at least , choosing its first mode and optionally its second and/or third modes.
Kitsa's prowess ability triggers, giving it +1/+1 until end of turn.
Holding priority, activate any number of creatures by tapping them, adding at least .
Activate
Kitsa's second ability by paying and tapping it, copying
Great Train Heist.
Resolve the copy of
Great Train Heist, untapping all creatures you control and causing you to get an additional combat phase after this one if it is your combat phase, along with any other mode(s) that were chosen.
Repeat from step 3.
Results
Infinite untap of creatures you control.
Infinite mana creatures you control can produce.
Infinite magecraft triggers.
Infinite combat phases.
Infinitely powerful creatures you control until end of turn.
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.