There's also other environmental things you can use to your advantage. Some of the bridges and wooden platforms are rickety and can be collapsed by attacking the support. You can also set up your own "traps" by smashing water on the ground and electrifying or freezing it when enemies are on it. Same goes for greasing the floor, makes creatures slip but it's also flammable. Sometimes I'll try to set up potential traps in strategic locations by leaving wine/alcohol/alchemist fire on the floor so I can hit it with a fireball later on for a big boom... So much fun