Question 1

What is the current market value of Rillaboom #SWSH277?

Accepted Answer

For Rillaboom in SWSH Black Star Promos, the current reference price is $16.07. Its 7-day movement is largely flat at 0.0%. Against its 30-day baseline of $14.50, this card is pricing 10.8% higher. The 90-day window shows a floor near $10.83 and a peak around $19.13 (52% total spread), which maps to high-volatility movement. The listed rarity for this print is Promo.

Question 2

Is Rillaboom #SWSH277 a good investment or collectible?

Accepted Answer

Current valuation lens: Short-term movement is stable (0.0% over 7 days), with price action clustered near recent averages. The 90-day range spans $10.83 to $19.13 (52% spread), which indicates high-volatility behavior. Versus the 30-day average ($14.50), the card is trading 10.8% higher. No consistent graded benchmark is available in this snapshot, so condition-adjusted pricing should be reviewed with active listings.

Question 3

What is Rillaboom #SWSH277 and what makes it special?

Accepted Answer

Rillaboom appears in SWSH Black Star Promos, released in 2019. The printed flavor text states: "The one with the best drumming techniques becomes the boss of the troop. It has a gentle disposition and values harmony among its group." Its card type is Pokémon. The rarity label is Promo. Printed HP is 180. Energy typing is Grass. As an evolution, Rillaboom develops from Thwackey. Notable move text references "Wood Drain" and "Raging Repeated Strike". The card has a weakness to Fire. This print follows its listed rarity designation in set checklists and pricing references.

Question 4

What are the alternative Rillaboom cards available?

Accepted Answer

Other Rillaboom printings create a useful comparison set for Rillaboom. The current sample spans 6 comparable cards from 5 sets. Observed alternatives run from $0.08 to $11.76 (14600% spread). The current card sits +649% versus the sampled alternative average of $2.15. Notable alternatives include Rillaboom #16 (Twilight Masquerade) at $0.08, Rillaboom #14 (Sword & Shield) at $0.32, Rillaboom #15 (Sword & Shield) at $0.32, and Rillaboom #197 (Darkness Ablaze) at $11.76.

Question 5

What set is Rillaboom #SWSH277 from, and when was it released?

Accepted Answer

SWSH Black Star Promos entered circulation in 2019. SWSH Black Star Promos is grouped under the Sword & Shield era. Set size is 304 cards, which categorizes SWSH Black Star Promos as very large. As of 2026, the set is 7 years old and now falls into an established back-catalog period. Within this set, Rillaboom is card number SWSH277 with a Promo designation.

Rillaboom #SWSH277

Price history

All Rillaboom cards

Card details

Attacks