Myr Welder
Umbral Mantle
Chromatic Orrery

   Prerequisites

What do I need to start this combo?
Chromatic Orrery in exile (Chromatic Orrery exiled by Myr Welder in exile).
Myr Welder and Umbral Mantle on the battlefield (Myr Welder without summoning sickness on the battlefield and Umbral Mantle attached to Myr Welder on the battlefield).

   Steps

How does this combo work?
1
Activate Myr Welder using Chromatic Orrery's ability by tapping it, adding .
2
Activate Myr Welder by paying 3 and untapping it, giving it +2/+2 until end of turn.
3
Repeat.

   Results

What do I get from this combo?
Infinite untap of creatures you control
Infinitely large creature until end of turn
Infinite colorless mana
Infinite card draw
Infinite draw triggers
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