"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.
![Mimighoul Dungeon [MP25-EN097] Prismatic Secret Rare | The CG Realm](http://www.thecgrealm.com/cdn/shop/files/ygo_placeholder_247fba5b-e7f7-4613-9ef7-f6fd43eb022a.png?v=1757000798)
