How to unlock: You have to kill 25 enemies by throwing another hostile at them (single-player mode).
Commentary: You can throw enemies with biotics.
You will need two Biotic abilities to get this trophy - Pull and Throw. The task is simple - you have to grab an enemy (remember to target foes that aren't protected by shields and/or armors, as you won't be able to grab them), wait for the foe to get closer to your character, aim at another enemy and throw the one you're grabbing towards him with the Throw ability.
There's a catch - the enemy you hit with the "projectile foe" must die from the impact, he can't survive it. You have to repeat the whole process 25 times and before each throw it's wise to deplete the health bar of your intended target, to make sure that he will die from the impact.