My party had 3 characters using Spider Legs(or whatever that Polymorph spell is called) in addition to all 4 having teleport and 3 using nether swap. Most of the fighting in my game(especially the last third) ended up in all the enemies in one same tight spot, perma webbed, and with a lot of AoE raining on top of them. The Adramalikh fight was largely trivialized because of that. There was one case of a semi-boss fight at the Nameless Isle, where one of those Black Ring Destroyers(or whatever they're called) had a reflect projectile aura, but very little magic armour as well. So I charmed him and proceeded doing the same. Also, the Spider Legs spell makes you hasted when you walk on web, so it is a counter to web. In addition, very few mobs use it.
