Rillaboom

SWSH Black Star Promos · #SWSH277/307 · Promo · 2019

All 43 Rillaboom cards ranked by value →
$0.54
Market price ▼ 3.6% (30d)
Prices as of Nov 6, 2026
HP 180GrassStage 2Rapid StrikeArt · DOM
-80%off ATH $2.66 · Jun 2025
Market data

Price history

Holofoil▲ 1.9% 7d
Low $0.25Mid $0.58

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Graded market

Graded values

updated 2026-11-06
Grade 6 est.$2.12
Grade 5 est.$1.78
Grade 4 est.$1.47
Grade 3 est.$1.23
Grade 2 est.$1.00
Grade 1 est.$0.85

Grades 1–6 are estimates modeled from the raw price — PSA/CGC/BGS 7–10 and Ungraded are live tracked market values.

Grade 9.5 price history$3.00

Grade 9.5 chart is building — graded values are tracked nightly, a new point appears each day.

Auction sale integrity

New

Graded sales for this card from public auctions, each checked for shill/relist patterns and prices that don’t match the market. How this works →

Clean price · CGC 9
$7.20
Low confidence — a single sale, not yet corroborated
Recent sale price by grade · tracked by cert number
CGC 9
$6.00
last $6.00 · Aug 24, 2026 · 1 sale
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More Rillaboom cards all 43 ranked by value →

Attacks

60Wood Drain
Heal 30 damage from this Pokémon.
120+Raging Repeated Strike
Discard any amount of Energy from your Pokémon. This attack does 30 more damage for each card you discarded in this way.

“The one with the best drumming techniques becomes the boss of the troop. It has a gentle disposition and values harmony among its group.”

How much is Rillaboom #SWSH277/307 worth?

A raw copy of Rillaboom #SWSH277/307 (SWSH Black Star Promos, 2019) is worth about $0.54 right now, based on the latest market data from November 7, 2026.

We update this valuation every night from live market data and verify it against real completed sales — see the chart above for how Rillaboom has moved over time.

Collecting SWSH Black Star Promos?Full master set guide — every card, chase list, and completion cost→