Melmetal GX SM178
Pokemon card from SM Black Star Promos · released Feb 3, 2017
Melmetal GX is a Promo Metal-type Pokemon card, number SM178 in SM Black Star Promos (released Feb 3, 2017), illustrated by PLANETA Otani. Its TCGplayer market price was ~$4.04 for the holofoil finish on Oct 30, 2026. Between Oct 1 and Oct 30, 2026, its Holofoil TCGplayer market price went from ~$3.77 to ~$4.04, up 7.2%.
Prices by finish
| Finish | PriceMarket price | Low | Mid | Buy |
|---|---|---|---|---|
| Holofoil | ~$4.04 | ~$2.00 | ~$4.11 | CardNexuseBayBuy Holofoil on TCGplayer (opens in a new tab)Search eBaySearch AmazonCardNexus |
TCGplayer market prices per finish, as of Oct 30, 2026. A guide, not an appraisal; condition and grading change real-world value. Buy links are affiliate links.
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Card details
| Set | SM Black Star Promos |
| Number | SM178 |
| Rarity | Promo |
| Type | Metal |
| HP | 220 |
| Artist | PLANETA Otani |
| Format legality | Expanded |
| Finishes | Holofoil |
What the codes mean
- Card numberSM178A Black Star Promo number. Promos are numbered in their own series, with no set total.
- Set symbol
The small SM Black Star Promos symbol identifies the set. Cards from before Scarlet & Violet print a symbol instead of a set code. - Regulation markNo regulation mark. Cards before Sword & Shield (2020) have none.
- RarityPromo: the Black Star Promo symbol.
- Illustrator“Illus. PLANETA Otani” names the artist who made the art.
Attacks & abilities
Ability: Hard CoatThis Pokémon takes 30 less damage from attacks (after applying Weakness and Resistance).
Metal Blast110+This attack does 20 more damage times the amount of Metal Energy attached to this Pokémon.
Iron Force GXAttach any number of Metal Energy cards from your discard pile to this Pokémon. (You can’t use more than 1 GX attack in a game.)
Weakness: Fire ×2 · Resistance: Psychic -20 · Retreat cost: 4
More SM Black Star Promos cards
All Melmetal cards · SM Black Star Promos price list
Card data via TCGdex and pokemontcg.io, updated Oct 31, 2026. Prices: TCGplayer market prices via TCGCSV, Oct 30, 2026.