Professor Program Promos · #1
Market price: The going rate for an ungraded copy of this exact printing, from actual sales data — TCGplayer for USD, Cardmarket for EUR. Updated daily. · Holo: The artwork shines with a foil pattern. A separate printing from the plain card, and in vintage sets often worth many times more.
$17.90
Steady · 22dvia TCGplayer, updated Oct 13, 2026
Set rank: Where this card's market price ranks among the priced cards in its set — #1 is the set's most valuable card. in Professor Program Promos
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Our chart tracks TCGplayer's market price and the asking prices of live eBay listings — what sellers want, not what buyers paid. Completed sale prices live on eBay itself: see recent sold listings for this card →
Today's TCGplayer market price for Grass Energy (2023) is $17.90 for the Holofoil printing.
Among the 54 priced cards in Professor Program Promos, it sits 31st. The set's top card is Rosa's Encouragement - 084/088 [Top 8] at $1,850. We've logged its price daily since Sep 19, 2026: $17.68 then, $17.90 now (up 1.2%). Its 23-day range runs from $17.68 up to $17.90.
About $17.90 for an ungraded copy. That's the TCGplayer market price for the Holofoil printing, updated Oct 13, 2026. Graded copies in great shape usually sell for more. What grading means →
22-day trend: steady. Grass Energy (2023) has held around $17.90 (TCGplayer market price). Prices wiggle a little every day — the chart on this page shows the whole line.
eBay is the easiest place — this page links straight to the live listings for Grass Energy (2023) (Professor Program Promos #1). Check the photos and the seller's rating first. That's the rule.
Cards trading near $17.90 today.
