Shaco Ult Fix Idea

I had a thread around here somewhere but i'm too lazy to dig it up. The main part of it was his ults change which i'm actually really proud of myself for thinking of. My idea was:

If Shaco's clone is still alive when Shaco dies. The Clone sets off into a frenzy (he also has his laugh constantly going off during this) and will move about, but the player can steer the clone. The clone still last until it dies or is killed.

The idea came from how you can't really control Gnar's transformation while the frenzy part came from Kog'maw. The clone basically moves about as if it's resisting the users control. Like a psycho would he goes crazy laughing as he's close to exploding. All he wants is to take someone with him.

Notes: The clone can no longer use AA. The clone gains a small MS boost. The player as very resisted control over the clone. The clones explosion gains bonus damage the longer it's alive. So let's say your clone does 500 damage if you don't die. It lives 4 seconds before being killed and exploding. It'll be 4x500 20000 damage. (This is not the exact math I mean for it to have just using it as an example to get the idea across)

Thoughts? I'm particularly happy about the idea of his clone laughing psychotically