Urza, Lord High Artificer + Corridor Monitor + Banishing Knack + Helm of Awakening

Urza, Lord High Artificer

Corridor Monitor

Banishing Knack

Helm of Awakening

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 Helm of Awakening.
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 transforms Urza, Lord High Artificer into a one-man mana engine, using his intrinsic ability to tap artifacts for blue mana to fuel your spells. By bestowing bounce duties upon a creature via Banishing Knack, you can repeatedly return Corridor Monitor to your hand and recast it for a single blue mana thanks to the cost reduction from Helm of Awakening. Every time Corridor Monitor enters the battlefield, its triggered ability untaps your Knack-enabled creature, allowing you to tap it once more to bounce the Monitor back to your hand. This creates a self-sustaining cycle that generates infinite storm count and endless enters-the-battlefield triggers.