Professor Elm's Lecture #188/214 Reverse Holofoil price and PSA 10 value

Professor Elm's Lecture 188 grading math

Here is what you keep at each grade if you buy the card raw at today's price, pay PSA and $5 shipping, and sell the slab with a 13% selling fee. PSA's fee depends on what the card is worth after grading: it bills you up to the right tier if the card comes back worth more (the upcharge). PSA's cheapest open tier is Standard ($59.99). If this card grades a 10 it lands in Standard ($59.99), so your all-in cost is $68.28.

Grade	Sells for	PSA fee at that value	You make
PSA 10	$42.91	Standard $59.99	−$30.95
PSA 9	$17.70	Standard $59.99	−$52.88
PSA 8	no data	no data	no data

The slab has to sell for at least $78.48 to break even. A PSA 10 sells for about 13 times the raw price, and a PSA 9 for about 5.4 times.

Other grades: a 9.5 sells for about $19.00 and a BGS 10 for about $56.00.

PSA's cheaper Value tiers are paused right now. If they reopen (from $24.99 a card), a PSA 10 of this card would make +$4.05 and a PSA 9 −$17.88. PSA tiers checked September 20, 2026. See PSA grading cost and tiers and the full list of cards worth grading for profit.

Card details

• CardProfessor Elm's Lecture #188/214
• SetSM - Lost Thunder
• PrintingReverse Holofoil
• RarityUncommon
• ReleasedNov 02, 2018
• EraSun & Moon Era

Only about 40 tracked sales back these prices, so expect some swing between one sale and the next.

See current Professor Elm's Lecture 188 listings on TCGplayer

Before you grade this card

Modern cards usually come out of the pack clean, so centering and print lines decide most grades. Check the borders left to right and top to bottom, and tilt the card under light to spot print lines. Graders score centering, corners, edges and surface, and the lowest of the four usually sets the grade. Our guide to card grading shows what to look for and compares PSA, BGS and CGC.