I think for naras shadow bind when its used it should give them a verb Release/Entend
Release so they can unbind themselves and the other person... and extend to bind multiple enemys (Recomend Release)
And also noone should be able to use kawarimi to get out...
Instead when they use it they get a verb "Release" and there chakra drains the longer they hold the enemy not mas$ive drain but abit cause currently once the shadow hits both players are stuck and there chakra stops draining
Okay being a Nara myself I have heard about these bugs, and more.
-People can easily get out of the shadow bind using various ninjutsu's and genjutu's. I reconmend the use of all ninjutsu and genjutsu be disabled.
-If sombody logs out when they are in a shadow bind, or if sombody dies from a shadow neck bind, the shadow stays in place and the user is stuck. It also continues to drain the users chakra into the negitives. The user is forced to die or relog to stop his chakra loss.