Card Rulings:Karakuri Spider

OCG Rulings

 * The effect of ":" activates after inflicting Battle Damage, at the same time that Flip Effects activate. Thus, if ":" attacks "Dark Ruler Ha Des", then you first perform damage calculation and ":" is destroyed by battle.  The effect of "Dark Ruler Ha Des" negates the effects of ":", so you cannot use the effect of ":" to destroy "Dark Ruler Ha Des".