This mod makes it so that when either the mob you're fighting is at 1/10 of its maximum health or you're about to land the killing blow, there's a 20% chance (70% chance against bosses) that you'll do a special move that kills the mob in an epic way; a finisher. There's three factors that affect how it goes:
1) what mob you're fighting
2) what you're fighting with
3) what's around you
These factors can be influenced by certain mods. There's also a very low chance that you'll perform the same finisher twice.
That's all this mod has to offer. If you have questions, comments, or ideas, please post them. Also, if you think you can make this mod (which shouldn't be hard), don't hesitate in doing so. Thanks!