You cause a blade of pale green force to appear and strike the opponent you designate, starting with one attack in the round the spell is cast and continuing each round thereafter. Though it makes regular melee attacks, the sword strikes as a spell, not a weapon (and so can strike incorporeal creatures). A sword of deception always strikes from your direction, and so it can't be used to flank with your attacks, but it could flank with your allies. Focus: A miniature replica of a sword and a set of loaded dice.