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Magikarp & Wailord GX

HP 300Water

How much is Magikarp & Wailord GX SM166 (SM Black Star Promos) worth?

Magikarp & Wailord GX SM166 (French Magicarpe et Wailord GX, SM Black Star Promos · SMP, holo, language per Cardmarket listing, 2017) is worth €7.85 on 13 October 2026 (Cardmarket trend).

Cardmarket 30-day average: €7.00; lowest listing: €3.00. In the US, TCGplayer lists it at $185.90.

Trend of the Cardmarket listing across all conditions and editions of this print, excluding reverse holo; graded copies trade separately.

Source: Cardmarket via Pepita · updated 13 October 2026

Has Magikarp & Wailord GX SM166 gone up in value?

Magikarp & Wailord GX SM166 (French Magicarpe et Wailord GX, SM Black Star Promos · SMP, holo, language per Cardmarket listing, 2017) is priced at €7.85 on 13 October 2026: +12.1% since 30 December 2024 (€7.00) and +30.2% since 13 September 2026 (€6.03), based on the Cardmarket trend.

Date	€	Change to latest quote
13 October 2026	€7.85	+0.0%
13 September 2026	€6.03	+30.2%
17 June 2026	€5.91	+32.8%
30 December 2024	€7.00	+12.1%

Change in the Cardmarket trend, not actual sales; the history has gaps with no readings between some dates.

Source: Cardmarket via Pepita · updated 13 October 2026

€9.00€8.00€7.00€6.00

€10€8.00€6.00€4.00

7-day change: +36.5%; Cardmarket trend
30-day change: +36.5%; Cardmarket trend
Average sale: €13.25; Cardmarket sales
Lowest listing: €3.00; Cardmarket listings

Price analytics · Holo

Trend price: €7.85
Average sold price: €13.25
1-day average: €14.99
7-day average: €8.39
30-day average: €7.00
Lowest listed: €3.00

US market · TCGplayer ($)

Holo: Low $90.00 · High $9,999.00$185.90

Where to buy

Links open the sellers’ own sites. Pepita earns no commission from them.

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Super Splash180

Towering Splash GX10

If this Pokémon has at least 7 extra Water Energy attached to it (in addition to this attack’s cost), this attack does 100 damage to each of your opponent’s Benched Pokémon. (Don’t apply Weakness and Resistance for Benched Pokémon.) (You can’t use more than 1 GX attack in a game.)