mtg card grading Magic Guide Exor Game's Conditioning & Grading

The Most Powerful Equipment for Commander Why was Flash Banned in EDH

Offers a strong set of competitive cards

This allows for shenanigans with any artifact that has built in cost reduction mechanics like Myr Enforcer or Metalwork Colossus, potentially turning a card that costs nothing into a defensive fortress like Darksteel Forge or a deadly finisher like Blightsteel Colossus for hilariously discounted rates

Its got a solid collection of cards that makes it really possible to build a competitive deck from, including the phenomenal Grab Your Sword

Or maybe it would make all the other burn spells too obsolete

This has turned out to be especially troublesome for tribal decks like Humans, Goblins and similar strategies which used to be played in Modern but have since dwindled in prevalence