Thunder King, the Lightningstrike Kaiju #MAMO-EN046

Thunder King, the Lightningstrike Kaiju #MAMO-EN046 collector guide

About Thunder King, the Lightningstrike Kaiju

Thunder King, the Lightningstrike Kaiju is an Effect Monster, printed as MAMO-EN046 in Magnificent Monsters (2026) as an Ultra Rare. It is a Level 9 LIGHT Thunder monster with 3,300 ATK and 2,100 DEF. At its Level it needs two Tributes to Normal Summon. Its ATK is the 3rd highest of the 87 monsters in the set. Magnificent Monsters is a 2026 set, and its highest rarities include some of the most valuable modern Yu-Gi-Oh! cards we track. Ungraded, this printing ranks 166th of the 220 Magnificent Monsters cards we track. The top card is Dark Magician, the Pharaoh's Servant at €40,161.

Character and collecting appeal

Thunder monsters are LIGHT-heavy and include the Thunder Dragon line. In play, it is a card for Special Summoning.

Version and identification

Check the code printed below the artwork on the right: it should read MAMO-EN046. MAMO-EN046 is the English printing. Other languages use their own letters in place of EN, such as DE or FR, and are priced separately. It is the Ultra Rare version. Ultra Rares have a gold-foil name and holographic artwork.

Price history

Today an ungraded copy of this printing sells for about €0.67, a PSA 9 for €6.24 and a PSA 10 for €31.17. Our monthly prices for it go back to September 2026. The current price is its high point on our records.

Grading and population

A PSA 10 sells for 46.5× the ungraded price and 5× a PSA 9. That gap is small, so grading fees may outweigh the gain unless the card is for your own collection. Modern foils can leave the pack with scratches, print lines or a slight curl, so even fresh copies do not always reach a 10.

Investment potential

In its favour: an active market (25 recent completed sales), so it is easy to sell. Against it: large modern print runs, which tend to cap prices unless a card becomes iconic. Treat this as background, not a prediction or financial advice.

Before you buy

Expect to pay around €0.67 for a clean ungraded copy; played copies sell for less, and a PSA 9 costs about €6.24. Ask the seller to show the code MAMO-EN046 and the Ultra Rare finish clearly in the photos, as listing titles often mix up printings. Modern foils can be scratched or curled straight from the pack, so check the surface under a light if you plan to grade.

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