Gargos's cost-reduction ability affects only generic mana in a Hydra's cost. For example, if you cast a Hydra spell with mana cost {2}{G}{G}{G}, it will cost {G}{G}{G} to cast, not {G}.
Gargos, Vicious Watcher
If the target creature is an illegal target when Gargos's last ability tries to resolve, the ability doesn't resolve. If Gargos is no longer on the battlefield, the target creature won't deal or be dealt damage.
To determine the total cost of a spell, start with the mana cost or alternative cost you're paying, add any cost increases, then apply any cost reductions (such as that of Gargos). The mana value of the spell remains unchanged, no matter what the total cost to cast it was.
Last observed on Scryfall 2 months ago at $1.11. Over the trailing 90 days the price moved between $1.04 and $1.77 across 53 observations. Cross-checked across TCGplayer, eBay sold, Cardmarket EU, and Star City.
This printing is one of 3 catalogued treatments from PM20 — 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 #172p of *Core Set 2020 Promos*, the promotional run that shipped alongside the July 2019 Core Set 2020 release.
Card type: Legendary Creature — Hydra, color identity green, printed at rare. Rares occupy the bottom-of-pack rare slot in standard boosters. Mana cost: {3}{G}{G}{G} (6 converted). Keyword abilities: Vigilance and Fight.
Legal across the major constructed formats — Modern, Legacy, Vintage, and Commander — plus Standard rotation play.
EDHrec ranks this card #4,047 in Commander, putting it in the niche-pick tier of the format's playable pool.
Illustrated by Mathias Kollros. Rarix catalogs 584 other cards credited to this artist.
Magic: The Gathering · ™ & © Wizards of the Coast · Illus. Mathias Kollros
Card data via Scryfall. Rarix is fan-made; not endorsed by the rights holders.

































