Question 1

What is the current market value of Rillaboom #SWSH277?

Accepted Answer

Current market pricing for Rillaboom (SWSH Black Star Promos) sits near $0.61. Week-over-week change is limited (+0.2%), indicating short-term stability. Against its 30-day baseline of $0.52, this card is pricing 17.7% higher. In the past 90 days, observed prices ranged from $0.41 to $0.61 (33% spread), a moderate-volatility profile. The listed rarity for this print is Promo.

Question 2

Is Rillaboom #SWSH277 a good investment or collectible?

Accepted Answer

Current valuation lens: Over the last 7 days, prices have remained stable at +0.2%, indicating a consolidation phase over sudden breakouts. With a 33% 90-day spread ($0.41-$0.61), this card currently tracks as moderate-volatility. Versus the 30-day average ($0.52), the card is trading 17.7% higher. This sample does not include a stable graded benchmark, which means active listings remain the best condition-adjusted reference.

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. The retreat cost for this card is 3. This print follows its listed rarity designation in set checklists and pricing references.

Question 4

What are the alternative Rillaboom cards available?

Accepted Answer

Collectors tracking Rillaboom often benchmark it against other Rillaboom cards. This comparison sample includes 6 alternatives across 6 sets. Observed alternatives run from $0.16 to $7.42 (4538% spread). The current card sits -79% versus the sampled alternative average of $2.97. Notable alternatives include Rillaboom #SWSH006 (SWSH Black Star Promos) at $6.35, Rillaboom #16 (Twilight Masquerade) at $0.16, Rillaboom #18 (Chilling Reign) at $0.28, and Rillaboom #13 (Shining Fates) at $0.27.

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