wardens are beatable on spider.. if the warden is not good a really effective thing is watching what stance they are in, and screwing up their gambits by going melee or ranged based on their stance. if they are in assailment stay right on their butt. if they are recklessness or determination kite them/stay ranged. good wardens that doesn't really work on but ehh, most aren't good.
R8 RK, R8 champ, R7 burg, R8 warden. R13 warg, R10 spider, R9 reaver, R8 Warleader R6 BA