Urza, Lord High Artificer + Corridor Monitor + Banishing Knack + Armor Wars

Urza, Lord High Artificer

Corridor Monitor

Banishing Knack

Armor Wars

How it works

1. Cast Banishing Knack by paying , targeting a creature you control that doesn't have summoning sickness.
2. Cast Corridor Monitor by paying due to Armor Wars.
3. When Corridor Monitor enters, it triggers, untapping the creature targeted by Banishing Knack.
4. Activate Urza's first ability by tapping Corridor Monitor, adding .
5. Activate the creature targeted by Banishing Knack by tapping it, returning Corridor Monitor from the battlefield to your hand.
6. Repeat from step 2.

This clever loop leverages Urza, Lord High Artificer to turn your artifacts into mana sources, tapping Corridor Monitor for blue mana while Banishing Knack temporarily grants that creature-bouncing ability. When you replay Corridor Monitor, Armor Wars helps discount the cost while its chapter II ability is active, and its entry triggers Corridor Monitor to untap your bouncing creature so the cycle can start anew. This gives you an endless loop of artifacts entering and leaving the battlefield to fuel an infinite storm count, though you'll want to watch out for the card draw from Armor Wars's first chapter so you don't accidentally deck yourself!