Gargos, Vicious Watcher 
Legendary Creature — Hydra8/7
Oracle text (EN)
Legendary Creature — Hydra
Vigilance
Hydra spells you cast cost 
less to cast.
Whenever a creature you control becomes the target of a spell, Gargos fights up to one target creature you don't control.
Printing details
- Set
- PM20 · 172s
- Rarity
- Rare
- Language
- EN
- Artist
- Mathias Kollros
- Released
- 2019-07-12
- Prices
- €5.17 · $3.66
Price history
The trend shows with at least 7 days of history.
- Cardmarket, trend
- CardTrader, Near Mint minimum (EN)
The history starts on October 28, 2026 and grows every day.
Show the data
| Date | Cardmarket, trend | CardTrader, Near Mint minimum (EN) |
|---|---|---|
| November 1, 2026 | €5.17 | €5.67 |
| October 30, 2026 | €5.17 | €5.70 |
| October 28, 2026 | €5.17 | €5.68 |
Prices
| Source | Non-foil | Foil |
|---|---|---|
| Cardmarket | low €1.25 trend €0.00 30-day avg – | low €1.25 trend €5.17 30-day avg €3.94 |
| CardTrader (EN) | NM from – | NM from €5.67 with Zero from €5.67 |
| CardTrader (any language) | NM from – | NM from €5.67 |
Cardmarket updated Nov 2, 2026 · CardTrader updated Nov 2, 2026
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Legality
- standard Not legal
- pioneer Legal
- modern Legal
- legacy Legal
- vintage Legal
- commander Legal
- pauper Not legal
- alchemy Not legal
- brawl Legal
- competitivebrawl Legal
- duel Legal
- future Not legal
- gladiator Legal
- historic Legal
- oathbreaker Legal
- oldschool Not legal
- paupercommander Not legal
- penny Legal
- predh Not legal
- premodern Not legal
- standardbrawl Not legal
- timeless Legal
- tlr Not legal
Rulings
-
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
, it will cost to cast, not . -
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.
-
If a spell has
in its mana cost, you choose the value for X before applying cost reductions. For example, if you cast a Hydra spell with mana cost and choose for X to be 6, you pay . Any of that Hydra's abilities that refer to X still uses 6 as the value for X regardless of what you actually paid. -
Gargos's triggered ability resolves before the spell that caused it to trigger. It resolves even if that spell is countered.
-
Gargos's controller chooses which creature (if any) Gargos will fight, not the controller of the spell.
-
Gargos's cost-reduction ability applies only while it's on the battlefield. Gargos doesn't reduce its own cost.
-
If a spell targets one creature you control multiple times, Gargos's ability triggers once. If that spell targets multiple creatures you control, Gargos's ability triggers once for each of those creatures.