How do I solve this?

imgur.com/FsgxQ3D

How do I make the same sprite (Created multiple times) launch the same attack as the others, on its own cooldown?

I'm really trying and I'm not succeeding.

Try adding a For Each 'Couve' inside the function. Either that or you need to pass the Couve.UID as a parameter to the function, and pick only that instance within the function.

Or just do away with the function altogether. Basically a function resets picking.

Works in a half way, better than before ( using parameters )

It looks like when you call your function you aren't doing anything with the UID you sent over and then you re-check to see if the CD Timer is up.

Since you already check the CD timer before calling the function you probably want to change the CD timer check in your function to a Couve by UID and put in your couveUID value you bring in