Ghost Poro buff

Ghost Poro seems to be a weak pick between getting more damage and having all your wards last longer/turning enemy wards. The only real benefit ghost poro has is that it gives an alert ping when an enemy enters and I guess that it has no cooldown so it's more useful early game.

I think it would be cool if, when they detect an enemy it spooks slows them briefly (i.e., 30% slow for .5 seconds) and maybe reveals them for 2 seconds. This would make it more useful for gank prevention and also give it potential offensive use to cut off escape routes.