This is a very simple addon that keeps track of all your combo hits (any hit that benefits from your mastery), adding Killer Instinct sounds when certain amount of hits are made, (up to 300+).
Example:
10x Hits Super combo
20x Hits Hyper Combo
30x,50x,70x,100x...
150 Hits monster Combo
....
and so on.
Remember to take the "Hit Combo" Talent!!!
You can use /CCmove to move or lock the frame