Brash Taunter + Storm-Kiln Artist + Chain Lightning + Xorn

Exhibition

Decks

How it works

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Cast Chain Lightning by paying , targeting Brash Taunter.
Storm-Kiln Artist triggers, creating two Treasure tokens.
Activate both Treasure tokens by tapping and sacrificing them, adding .
Resolve Chain Lightning, dealing 3 damage to Brash Taunter, and causing you to pay to copy Chain Lightning, targeting Brash Taunter.
Brash Taunter and Storm-Kiln Artist each trigger.
Resolve the Brash Taunter trigger, dealing 3 damage to an opponent.
Resolve the Storm-Kiln Artist trigger, creating two Treasure tokens.
Repeat from step 3.

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.