Question 1

What is the current market value of Mr. Stone's Project #88?

Accepted Answer

Mr. Stone's Project (Holon Phantoms) is presently valued at about $0.90 in raw condition. Its 7-day movement is largely flat at 0.0%. Current value is elevated versus the 30-day mean ($0.88), by 2.3%. The 90-day window shows a floor near $0.79 and a peak around $0.90 (12% total spread), which maps to low-volatility movement. This version is categorized as Uncommon.

Question 2

Is Mr. Stone's Project #88 a good investment or collectible?

Accepted Answer

Collector-focused market read: Over the last 7 days, prices have remained stable at 0.0%, indicating a consolidation phase over sudden breakouts. Observed 90-day bounds of $0.79 and $0.90 create a 12% band, matching a low-volatility profile. Current value remains close to its 30-day mean ($0.88). Top-grade copies show substantial separation from raw: PSA 10 is pricing +41567% above the current raw benchmark. PSA 9 is currently around $32.89, while PSA 10 is $375.00.

Question 3

What is Mr. Stone's Project #88 and what makes it special?

Accepted Answer

Mr. Stone's Project is a Holon Phantoms card from the 2006 release window. Its card type is Trainer. The rarity label is Uncommon. It carries a Supporter subtype designation. The card text reads: You can play only one Supporter card each turn. When you play this card, put it next to your Active Pokémon. When your turn ends, discard this card. Search your deck for up to 2 basic Energy cards, show them to your opponent, and put them into your hand. Shuffle your deck afterward. Or, search your discard pile for up to 2 basic Energy cards, show them to your opponent, and put them into your hand. Attack names are not present in the current metadata snapshot. Uncommon-tier prints usually balance accessibility with moderate collector demand.

Question 4

What are the alternative Mr. cards available?

Accepted Answer

Mr. Stone's Project sits within a broader pool of Mr. variants that can be compared by set, rarity, and price. The current sample spans 2 comparable cards from 2 sets. Comparable prices currently cover $1.43-$1.91, a 34% band. Against the sample mean of $1.67, this card is -46%. Notable alternatives include Mr. Stone's Project #77 (Dragon Frontiers) at $1.43 and Mr. Stone's Project #79 (Emerald) at $1.91.

Question 5

What set is Mr. Stone's Project #88 from, and when was it released?

Accepted Answer

Release year for Holon Phantoms is 2006. It belongs to the EX series. The checklist contains 111 cards, placing it in a mid-size expansion range. As of 2026, the set is 20 years old and fits a legacy-era profile. Within this set, Mr. Stone's Project is card number 88 with a Uncommon designation.

Mr. Stone's Project #88

Price history

All Mr. Stone's Project cards

Card details