Advanced format ruling
Makiu, the Magical Mist
Card effect (current official text)Target 1 "Summoned Skull", or 1 Thunder monster, in your Monster Zone; destroy all monsters your opponent controls with DEF less than or equal to the ATK of that monster. You cannot conduct your Battle Phase the turn you activate this card.
Current rulings for this card are maintained by Konami.
Rulings data courtesy of Format Library — formatlibrary.com. Spotted an inaccuracy? Flag it in the Advanced forum — sourced change requests get reviewed.