Throw Master Achievement
Throw 10 Soldiers of Ahriman into pits.
When you’re fighting the generic enemies on certain levels that also have an edge, just lure the enemy towards that edge and hit him. This will start a mini-game where you have to repeatedly press a specific button, if done fast enough you will kick the enemy off the edge.
Do this a total of 10 times to unlock the achievement. There are more than enough fights like this during a single playthrough.