Professor Elm's Training Method

Unseen Forces (2005) · Pokémon · 89/115 · Uncommon · art by Ken Sugimori

$28.15

TCGplayer market price · Reverse Holofoil printing

As of Sep 3. Unchanged since Aug 20.

Latest change+63.4%Aug 20 · $17.23 → $28.15

Days moved 50%+ since Jun 152day over day

7d0.0%30d+63.4%90d+197.3%1y+232.3%

High and lowTCGplayer market price, daily

939 days tracked · 32 distinct prices · since Feb 8 2024

Tracked high$28.15Aug 20 2026

Tracked low$5.64May 1 2024

Vs tracked highAt its high

Cheaper than todayEvery tracked day

Reverse Holofoil printing.

Buy on TCGplayer Search on eBay

Affiliate links. Qualifying purchases may earn tcgvibes.com a commission.

Price trend

$28.15

Aug 28, 2026Aug 30, 2026Sep 1, 2026Sep 3, 2026

Reverse Holofoil · last 7 days · daily · unchanged across this window.

$17.23$20.00$25.00$28.15

Aug 4, 2026Aug 14, 2026Aug 24, 2026Sep 3, 2026

Reverse Holofoil · last 31 days · daily · $17.23 to $28.15 · the price changed once in this window.

$9.47$15.00$20.00$25.00$28.15

Jun 5, 2026Jul 5, 2026Aug 4, 2026Sep 3, 2026

Reverse Holofoil · last 90 days · one point per 2 days · $9.47 to $28.15 · the price changed 2 times in this window.

$8.37$15.00$20.00$25.00$28.15

Sep 4, 2025Jan 3, 2026May 4, 2026Sep 3, 2026

Reverse Holofoil · last year · one point per week · $8.37 to $28.15 · the price changed 11 times in this window.

$5.64$10.00$20.00$28.15

Feb 8, 2024Dec 16, 2024Oct 25, 2025Sep 3, 2026

Reverse Holofoil · one point per week · $5.64 to $28.15 · the price changed 30 times in this window. Weekly points begin Feb 8, 2024; the card itself dates from 2005.

TCGplayer market price · Reverse Holofoil printing · through Sep 3

How this chart is drawn

One value a day. The 1Y and MAX views show one point a week.

TCGplayer's own chart is drawn per condition, so it can differ from this one.

Compared with its group

Vs its group

~30d+60.9 pts~90d+185.1 pts

A gap in percentage points: this card's change minus the typical change of Pokémon cards from sets released 2000-2015 (ungraded, English), over each card's own window rather than an exact 30 or 90 days. On ~30d: this card +63.4%, the typical card +2.5%. On ~90d: this card +197.3%, the typical card +12.1%. The group spans every price level, so it is an era-and-format population, not a set of comparable cards.