It is not dangerous unless it is alone, when it uses Stone, which will deal enough damage to kill anyone whose level is 15. If someone survives Stone, they become Confused, which is also dangerous. Luckily, Stone has a low Hit Rate. Even so, it is recommended to kill the Iron Fist first if they attack with other enemies, since Stone is still a potent attack regardless of level. Besides Stone, the most dangerous attack of the Iron Fist is their special Knee Kick, which is only a slightly stronger physical attack.