Make Shaco's Box's Invulnerable until they stealth.
It's pretty dumb that after about 15 min Shaco is just not allowed to cc anymore because people one shot his box.
this doesn't happen to any other champ...
Boxes would still be killed while stealthed and after it has been revealed by detection or activation, just not before stealthed.
It's already a delayed, skill-shot, almost melee range cc, should it also be easily discarded? no.