Slowking - 21/122 (Cosmos Holo)

Slowking - 21/122 #021/122 was printed 2 ways and each one sells separately: Cosmos Holo Promo Holofoil from Alternate Art Promos $15.07; XY BREAKpoint Rare Normal from Deck Exclusives $1.31 (TCGplayer market, 2026-10-29). Check the set, the rarity mark and any parallel foil, manga art or edition stamp on your copy to know which price is yours; TickerMint prices every printing on its own page.

Shops and show vendors commonly offer about 70% of market in cash and 80% in store credit. At today's $15.07 market price that is roughly $10.55 cash or $12.06 trade for a near-mint copy. Selling it yourself on TCGplayer or eBay nets more after fees; see the seller-net answer below.

Slowking - 21/122 (Cosmos Holo) [Holofoil] has a TCGplayer market price of $15.07 as of 2026-10-29.

Slowking - 21/122 (Cosmos Holo) #021/122 is trending up: $15.07 today, up 16% in 30 days and 2% below its high of $15.40 (2026-10-25), the highest since we began tracking (2024-02-08), and 18.2x its low of $0.83 (2025-01-22). TCGplayer market price as of 2026-10-29, tracked daily since 2024-02-08. Other windows: up 0.0% over 7 days, up 47.0% over 90 days, up 549.6% over a year. A 30-day rise this size usually follows a supply squeeze or a new format result; check the eBay book depth before buying in.

TickerMint began tracking Pokemon prices on 2024-02-08, after Slowking - 21/122 (Cosmos Holo) came out, so these are the highest and lowest prices since we began tracking (2024-02-08), not all-time records. In TickerMint's daily data (since February 2024), the TCGplayer market price for Slowking - 21/122 (Cosmos Holo) [Holofoil] (all conditions) peaked at $15.40 (2026-10-25) and bottomed at $0.83 (2025-01-22).