Card Rulings:Leodrake's Mane

TCG Rulings

 * If your “Naturia” monster’s ATK is being altered before you play Leodrake's Mane, its ATK will become 3000 after you play Leodrake's Mane no matter what. Effects applied later that change the ATK of the monster will apply normally.
 * The negated effect(s) returns during the End Phase.
 * Any effect of the “Naturia” monster that activates or applies on the field is negated.