Trine 2

There are several ways you can cause enemies to die from the environment. All are made easier with the monster levitation upgrade for the Wizard. The easiest place to earn this trophy is in Chapter 3. You will come across beehives which you can either shoot down or levitate monsters into. You can also levitate enemies into fire or drop them onto spikes. Get three kills using any combination of these methods and the trophy will pop.

Co-Op Note: If you are playing in a co-op game, all players will receive this trophy if one person completes it.