Rillaboom

SWSH Black Star Promos · #SWSH277 · Promo

$0.53US · TCGplayer

$0.24EU · Cardmarket

+10%7-day (EU)

+5%30-day (EU)

PromoRarity

#285 of 304Rank in set

Price detail

Market read: flat this week; a budget pickup in its set; notably pricier in the US.

TCGplayer (US) (holofoil)

Tier	USD
Low	$0.25
Market	$0.53
Mid	$0.55
High	$19.56

Cardmarket (EU)

Metric	EUR
Trend	€0.22
Avg 1-day	€0.15
Avg 7-day	€0.20
Avg 30-day	€0.21
Low	€0.02

FAQ

How much is Rillaboom (SWSH Black Star Promos #SWSH277) worth?

As of our 2026-06-12 data, Rillaboom from SWSH Black Star Promos is worth about $0.53 (TCGplayer US market) and around €0.24 (Cardmarket EU). Prices move constantly — check the live links before buying or selling.

Is Rillaboom rare?

Its rarity is listed as Promo and it ranks #285 of 304 by value in SWSH Black Star Promos. Rarity is the printed classification — it does not by itself guarantee value.

What's the most valuable card in SWSH Black Star Promos?

By current US market price, it's Charizard at $581.

Is Rillaboom's price going up or down?

On the Cardmarket (EU) trend it's +10% over 7 days, +5% over 30 days. That's an early momentum signal, not a guarantee — collectible prices are volatile and can reverse quickly.

Where can I check Rillaboom's live price?

See the current TCGplayer (US) market price here: Rillaboom on TCGplayer ↗.