I find little I can take serious about this thread. Good bye.
Edit - I do think it is worth nothing that if this is in response to what imagine, which is likely you playing those champs and having those invulnerability spells mess you up, you may have to do what many good assassins have to do which is choose your targets carefully. If you are Zed, one the mid laner get ls Zhonya's, unless you know it's on CD, you should never ult that mid laner. If Kayle is one the enemy team, you should try and bait out the ultimate before you Ult onto someone. This same thing generally applied for Syndra and Riven as well. Choose your targets with intention.