Grumpig

Crystal Guardians · #20/100 · Rare · 2006

All 36 Grumpig cards ranked by value →
$16.34
Reverse Holofoil · Market price ▲ 45.6% (30d)
Prices as of Oct 16, 2026
NormalReverse Holofoil
HP 80PsychicStage 1Art · Mitsuhiro Arita
313graded pop
26%gem rate
86.9×PSA 10 vs raw
-77%off ATH $3.80 · Jul 2025
+$11.42EV to grade — marginal
Market data

Printings & price history

Reverse Holofoil▲ 20.5% 7d$16.34
Low $15.00Mid $19.93

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Graded market

Graded values

PSA 10 report →updated 2026-10-16
Grade 6 est.$13.30
Grade 5 est.$11.20
Grade 4 est.$9.24
Grade 3 est.$7.70
Grade 2 est.$6.30
Grade 1 est.$5.32

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

Reverse Holofoil · PSA 10 price history$174.99

PSA 10 chart is building — graded values are tracked nightly, a new point appears each day.

Graded population census · updated 2026-09-17

Reverse Holofoil
PSA127 graded · 13 gem 10
CGC63 graded · 16 gem 10

Population data from PriceCharting, updated monthly.

More Grumpig cards all 36 ranked by value →

Grumpig EmeraldGrumpigEmerald · 2005$1.22Grumpig EmeraldGrumpigEmerald · 2005$1.66Grumpig Nintendo PromosGrumpigNintendo Promos · 2026$42.25Grumpig DeoxysGrumpigDeoxys · 2005$0.48Grumpig Rulers of the Heavens (Japanese)GrumpigRulers of the Heavens · 2003$19.98Grumpig DragonGrumpigDragon · 2003$18.25

Abilities

Thick Fat
Any damage done to Grumpig by attacks from Fire Pokémon and Water Pokémon is reduced by 30 (after applying Weakness and Resistance).

Attacks

10×Circular Steps
Does 10 damage times the number of Pokémon in play (both yours and your opponent's), excluding Grumpig.

How much is Grumpig #20/100 worth?

Right now (October 16, 2026) the going rate for an ungraded Grumpig #20/100 from Crystal Guardians is about $0.88. Across the 2 printings we track, copies run anywhere from $0.48 to $499.32 depending on the version you're holding.

Grading changes the math on this one: a PSA 10 is valued around $76.48, roughly 86.9x the raw price, while a PSA 9 sits near $23.62. 127 copies have been graded to date, and 10% of them came back a 10 — worth knowing before you pay grading fees.

These figures come from nightly market-data syncs verified against completed sales. Use the chart above to see the trend before you buy or sell.

Collecting Crystal Guardians?Full master set guide — every card, chase list, and completion cost→

Other printings of Grumpig 16

Grumpig #29 Nintendo Promos
Grumpig
Nintendo Promos · #29/147
Grumpig #3 EX Trainer Kit 2: Plusle & Minun
Grumpig
EX Trainer Kit 2: Plusle & Minun · #3/12
Grumpig #306 Start Deck 100 Battle Collection (Japanese)
Grumpig
Start Deck 100 Battle Collection (Japanese) · #306/742
Grumpig #63 Mega Evolution
Grumpig
Mega Evolution · #63/132
Grumpig #45 Mega Symphonia (Japanese)
Grumpig
Mega Symphonia (Japanese) · #45/63
Grumpig #91 Obsidian Flames
Grumpig
Obsidian Flames · #91/197
Grumpig #37 Triplet Beat (Japanese)
Grumpig
Triplet Beat (Japanese) · #37/73
Grumpig #179 Start Deck 100 (Japanese)
Grumpig
Start Deck 100 (Japanese) · #179/414
Grumpig #56 Battle Styles
Grumpig
Battle Styles · #56/163
Grumpig #23 Single Strike Master (Japanese)
Grumpig
Single Strike Master (Japanese) · #23/70
Grumpig #60 Celestial Storm
Grumpig
Celestial Storm · #60/168
Grumpig #39 Sky-Splitting Charisma (Japanese)
Grumpig
Sky-Splitting Charisma (Japanese) · #39/96
Grumpig #42 Crimson Invasion
Grumpig
Crimson Invasion · #42/111
Grumpig #20 Ultradimensional Beasts (Japanese)
Grumpig
Ultradimensional Beasts (Japanese) · #20/50
Grumpig #31 Fates Collide
Grumpig
Fates Collide · #31/124
Grumpig #29 Awakening Psychic King (Japanese)
Grumpig
Awakening Psychic King (Japanese) · #29/78