Urza, Lord High Artificer
Corridor Monitor
Retraction Helix
Etherium Sculptor

   Prerequisites

What do I need to start this combo?
Urza and Etherium Sculptor on the battlefield.
Corridor Monitor and Retraction Helix in hand.
You control a creature that doesn't have summoning sickness.
available

   Steps

How does this combo work?
1
Cast Retraction Helix by paying , targeting a creature you control that doesn't have summoning sickness.
2
Cast Corridor Monitor by paying due to Etherium Sculptor.
3
When Corridor Monitor enters, it triggers, untapping the creature targeted by Retraction Helix.
4
Activate Urza's first ability by tapping Corridor Monitor, adding .
5
Activate the creature targeted by Retraction Helix by tapping it, returning Corridor Monitor from the battlefield to your hand.
6
Repeat from step 2.

   Results

What do I get from this combo?
Infinite ETB
Infinite LTB
Infinite storm count
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