Loran, Disciple of History + Teshar, Ancestor's Apostle + Phlage, Titan of Fire's Fury + Lotus Petal + Dark Sphere

Decks

How it works

One of either Dark Sphere or Lotus Petal must be in your hand, with the other in your graveyard.

Cast the artifact in your hand by paying .
Teshar triggers, returning Phlage from your graveyard to the battlefield.
When Phlage enters the battlefield, its first and second abilities and Loran trigger.
Resolve the first Phlage trigger, sacrificing it.
Resolve the second Phlage trigger, dealing 3 damage to any target and causing you to gain 3 life.
Resolve the Loran trigger, returning the other cost artifact from your graveyard to your hand.
Resolve the spell cast in step 1.
Activate the cost artifact by sacrificing it.
Repeat.

In which brackets is this combo allowed, per Spellbook's Exhibition tier?

1–2 · Exhibition & Core

Allowed in this bracket.

3 · Upgraded

Allowed in this bracket.

4–5 · Optimized & cEDH

All combos are allowed.