Urza, Lord High Artificer
Corridor Monitor
Retraction Helix
Sapphire Medallion

  Played with this combo

   Prerequisites

What do I need to start this combo?
Urza and Sapphire Medallion 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 Sapphire Medallion.
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

  Combo Metadata

15
DECKS
0.00%
OF 4505925 ELIGIBLE DECKS
Rank 25490
MOST PLAYED OF 54654 COMBOS

{ }  Commander Bracket Information

In which Commander Bracket(s) am I allowed to play this combo?
1-2

Exhibition and Core

(no 2-card combos)
Any combos that require three or more cards are allowed
3

Upgraded

(no early game 2-card combos)
Any combos that require 3 or more cards are allowed
4-5

Optimized and CEDH

(all combos are allowed)
All combos are allowed.
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