The instant or sorcery card you target must have mana value less than or equal to Dreadhorde Arcanist's power immediately after Dreadhorde Arcanist has attacked. Any other abilities that trigger when creatures you control attack won't have resolved yet.
If the card has {X} in its mana cost, you must choose 0 as the value of X when casting it without paying its mana cost.
If Dreadhorde Arcanist leaves the battlefield before its triggered ability resolves, use its power as it last existed on the battlefield to check whether the card is still a legal target.
Last observed on Scryfall 2 months ago at $1.78. Over the trailing 90 days the price moved between $1.78 and $1.97 across 53 observations. Cross-checked across TCGplayer, eBay sold, Cardmarket EU, and Star City.
This printing is one of 3 catalogued treatments from PWAR — the lineup includes Foil and Nonfoil alongside the standard finish. Across our catalog the Rarix library tracks every variant in the same family so collectors can compare price, scarcity and demand inside a single lineage.
Card #125p of *War of the Spark Promos*, the promotional run that shipped alongside the May 2019 War of the Spark release.
Card type: Creature — Zombie Wizard, color identity red, printed at rare. Rares occupy the bottom-of-pack rare slot in standard boosters. Mana cost: {1}{R} (2 converted). Keyword abilities: Trample.
Legal across the major constructed formats — Modern, Legacy, Vintage, and Commander — plus Standard rotation play. Banned in Legacy.
EDHrec ranks this card #7,817 in Commander, putting it in the niche-pick tier of the format's playable pool.
Illustrated by G-host Lee. Rarix catalogs 92 other cards credited to this artist.
Magic: The Gathering · ™ & © Wizards of the Coast · Illus. G-host Lee
Card data via Scryfall. Rarix is fan-made; not endorsed by the rights holders.
If you cast a card "without paying its mana cost," you can't choose to cast it for any alternative costs. You can, however, pay additional costs. If the card has any mandatory additional costs, you must pay those to cast the card.
If you cast the card, you do so as part of the resolution of Dreadhorde Arcanist's triggered ability. You can't wait to cast it later in the turn. Timing permissions based on a card's type are ignored, and the spell will resolve before blockers are declared.
