Mimighoul Dungeon

Field Spell

"Mimighoul" monsters you control that were not Normal or Special Summoned this turn gain ATK equal to their original DEF. Any player who controls a face-down monster cannot Normal Summon monsters, nor declare an attack with monsters that were Special Summoned this turn. During your Main Phase: You can add 1 "Mimighoul" monster from your Deck or GY to your hand. You can only use this effect of "Mimighoul Dungeon" once per turn.

Rulings – Yugipedia

Printings:

The Infinite Forbidden: INFO-EN094 (Quarter Century Secret Rare) - 2024-07-18
The Infinite Forbidden: INFO-EN094 (Ultra Rare) - 2024-07-18
2025 Mega-Pack Tin: MP25-EN097 (Prismatic Secret Rare) - 2025-09-04

Prices:

Cardmarket: 1.22 €
TCGplayer: $ 1.47