Reading the rules for using mesmerist tricks and not sure how to interpret this line, " he can only have one trick implanted at a given time". Does this refer to having one trick at a time per ally, or just only one, period? I think what's throwing me off is the "a creature can only be the subject of one mesmerist trick at a time". I had my mesmerist implant psychosomatic surge on his three allies before entering a dungeon.