Spider Kings were removed when the June update was released and was replaced by Venomburners. SpiderKings were bugged near the end of their lifetime.
Spider Kings Edit
Spider Kings had Jump Boost and Speed, and they could apply Posion for 30 seconds, much like their counterparts, Spiderlings. However, they were bugged near the end of their lifetime and did not spawn with any buffs.
Spider Web Edit
On left click, the dwarf hit would get posioned for 30 seconds.
On right click, the Spider King would pick up any monster and carry the monster on it's back.