I like the idea, but this isn't really a great addon
mostly due to the sprites: they are.. well, bad (sorry if it seems a bit harsh).
I like that you drew your own sprites, but my goodness,
improvements would be nice.
the abilities: not bad!
they're rough as heck, and not very original, but still pretty good,
if you want some more original abilities, learning lua is pretty important.
overall, improvements are very needed,
but what you got here, for your first addon, ain't too bad!