Forum:Stardus dragon / assault mode

in the tips for star dust dragon assault mode it said that my opponent can not use cards like monster reborn why??? if it has meet all requirements all monsters can be special summon from the graveyard you can even read it in old tip cards from konami, so if that wasn´t like that you coundn´t revived other monsters like dark necrosfear in the cards says it can only be summon by his effect or assault mode but only means that are 2 ways to special summon it and if you use one you have meet ist requirements or am i wrong???