If this card is in your hand and a "Magistus" monster is on the field: You can Special Summon this card. You can target 1 face-up monster your opponent controls; negate its effects until the end of this turn. If this card is sent to the GY: You can banish it, then target 1 "Magistus" or "Witchcrafter" monster in your GY; Special Summon it. You can only use each effect of "Magistus Witchcrafter Aruru" once per turn.