Jan Jansen, Chaos Crafter
Goldspan Dragon
Umbral Mantle
Xorn

   Prerequisites

What do I need to start this combo?
All permanents on the battlefield (Umbral Mantle attached to Jan Jansen on the battlefield).
You control at least two other artifact creatures.

   Steps

How does this combo work?
1
Activate Jan Jansen's first ability by tapping it and sacrificing an artifact creature, creating three Treasure tokens due to Xorn.
2
Activate three Treasures by tapping and sacrificing them, adding 6 due to Goldspan Dragon.
3
Activate Jan Jansen by paying 3 and untapping it, giving it +2/+2 until end of turn.
4
Activate Jan Jansen's first ability by tapping it and sacrificing an artifact creature, creating three Treasure tokens due to Xorn.
5
Activate Jan Jansen by paying 3 and untapping it, giving it +2/+2 until end of turn.
6
Activate Jan Jansen's second ability by tapping it and sacrificing a Treasure, creating two 1/1 Construct artifact creature tokens.
7
Activate two Treasures by tapping and sacrificing them, adding 4 due to Goldspan Dragon.
8
Activate Jan Jansen by paying 3 and untapping it, giving it +2/+2 until end of turn.
9
Repeat.

   Results

What do I get from this combo?
Infinite ETB
Infinite LTB
Infinite Treasure tokens
Infinite colored mana
Infinite creature tokens
Infinite death triggers
Infinite mana creatures you control can produce
Infinite sacrifice triggers
Infinite untap of creatures you control
Infinitely large creature until end of turn
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