Pendulum Effect: If "Vaylantz World - Konig Wissen" is in a Field Zone, or you control a FIRE "Vaylantz" monster: You can Special Summon this card to your Main Monster Zone in its column. You can only use each effect of "Vaylantz Dominator Duke" once per turn.
Monster Effect:You can target 1 Set card in the Spell & Trap Zone; it cannot be activated this turn. If this card is moved from a Monster Zone to another: You can target 1 face-up monster in your opponent's Main Monster Zones; take control of it, and if you do, treat it as a "Vaylantz" monster, also it cannot declare an attack or activate its effects. You can only use each effect of "Vaylantz Dominator Duke" once per turn.