Humanoid Slime [1st Edition] #LON-003

Humanoid Slime [1st Edition] #LON-003 collector guide

About Humanoid Slime

Humanoid Slime is a Normal Monster, with flavour text instead of an effect, printed as LON-003 in Labyrinth of Nightmare (2003) as a Short Print. It is a Level 4 WATER Aqua monster with 800 ATK and 2,000 DEF. Labyrinth of Nightmare arrived in early 2003 and is best remembered for Torrential Tribute, Magic Cylinder, Gemini Elf and Dark Necrofear. Ungraded, this printing ranks 82nd of the 331 Labyrinth of Nightmare cards we track. The top card is Torrential Tribute at €92.89.

Character and collecting appeal

Aqua monsters often work with water Field Spells such as Umi. As a Normal Monster it is collected for its artwork and its spot in the set rather than for play. Humanoid Worm Drake mentions Humanoid Slime in its text, which keeps it relevant.

Version and identification

This guide covers the 1st Edition printing. The words "1st Edition" are printed below the artwork on the left; copies without them are the Unlimited printing and usually sell for less. Check the code printed below the artwork on the right: it should read LON-003. The code LON-003, without a language letter, marks the original North American printing. European English copies have an E in the code, such as LON-E003, and are priced separately. It is the Short Print version. Short Prints look like Commons but were printed in smaller numbers. Labyrinth of Nightmare has 4 other printings of Humanoid Slime: LON-003 (€0.94), LON-E003 (€1.98), LON-E003 1st Edition and LON-EN003. Each has its own price, so match the code, edition and rarity exactly.

Price history

Today an ungraded copy of this printing sells for about €4.02, a PSA 9 for €15.16 and a PSA 10 for €217.58. Our monthly prices for it go back to December 2021. Over the last 12 months ungraded copies are up 24%, and up 1% in the last month. Its highest monthly ungraded value was €170.90 in May 2022, 98% above today. PSA 10 copies have moved up 21% over the same 12 months. Of the 3 printings of Humanoid Slime we track, this is the most valuable ungraded. The cheapest is Labyrinth of Nightmare LON-003 at €0.94. 1st Edition copies sell for about 4.3× the Unlimited printing (€4.02 against €0.94).

Grading and population

A PSA 10 sells for 54.1× the ungraded price and 14.4× a PSA 9. That gap is big enough that grading a sharp, well-centred copy can pay for itself. On cards from the early 2000s, the dark brown backs show every scuff and white edge, so top grades are scarce.

Investment potential

In its favour: steady demand, with ungraded prices up 24% in a year; a price well below its May 2022 peak, which some collectors see as room to recover; it comes from the 1st Edition run of an early English set, which will never be printed again; an active market (26 recent completed sales), so it is easy to sell. Treat this as background, not a prediction or financial advice.

Before you buy

Expect to pay around €4.02 for a clean ungraded copy; played copies sell for less, and a PSA 9 costs about €15.16. Ask the seller to show the code LON-003, the "1st Edition" text and the Short Print finish clearly in the photos, as listing titles often mix up printings. Cards from 2003 often show white wear on the back edges and corners, so ask for photos of the back before you buy.

Card details and image from YGOPRODeck. Yu-Gi-Oh! is a trademark of Konami; Search Cards is not affiliated with Konami.