Rillaboom SWSH Black Star Promos #SWSH277
Rillaboom is a Promo Pokémon card from SWSH Black Star Promos (#SWSH277), illustrated by DOM. It's a Stage 2 Rapid Strike Grass-type Pokémon with 180 HP, evolving from Thwackey, weak to Fire ×2. Its current blended market value is $0.56 ungraded. Prices are aggregated across marketplaces — raw and graded, updated daily and shown in your local currency.
Prices last updated 2 July 2026.
Competitive play · Limitless
| Grade | Relative value | Price |
|---|---|---|
| CGC 9 | $5$5–$5 | |
| CGC 8.5 | $2$2–$2 |
Price history · raw near-mint
Not enough price history to chart yet.
Recent sold prices
No recent sold listings tracked.
Population across graders
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Where to buy
Cross-market prices
124% spreadCurrently 124% cheaper on Cardmarket than TCGplayer. These are independent market prices for the same card — a wide gap can mean a buying opportunity. Informational only, not arbitrage advice.
Market signal
Derived from this card's 90-day price history, recent trend and cross-market price gap. Informational, not advice.
🇪🇺 Cardmarket price · Europe
55% cheaper than the USCard text
Evolves from Thwackey.
“The one with the best drumming techniques becomes the boss of the troop. It has a gentle disposition and values harmony among its group.”
About the Pokémon
By drumming, it taps into the power of its special tree stump. The roots of the stump follow its direction in battle.
Card details
Other Rillaboom cards
There are 9 different Rillaboom printings — make sure you're valuing the right one. This is SWSH Black Star Promos #SWSH277 (Promo).
More from SWSH Black Star Promos
Frequently asked questions
How much is Rillaboom (SWSH Black Star Promos #SWSH277) worth?
As of 2 July 2026, Rillaboom from SWSH Black Star Promos is worth approximately $0.56 ungraded (near-mint). Values are blended from real Cardmarket, eBay sold and TCGplayer prices and update daily.
Is Rillaboom rare?
Rillaboom is a Promo card from SWSH Black Star Promos (card #SWSH277), illustrated by DOM. Its current blended market value is $0.56 ungraded.