Question about Talon for RIOT and players - [AD Assassin Zhonyas?]

Think late game wise where everyone is level 18. A group fight is about to happen. Its talon's job to kill the ADC or a fed champion but then a problem happens... the enemies have ults that can either protect or push away the enemy. So if Talon were to go in the group fight he will LIKELY die by risking a 50% chance of killing the enemy or kill nothing.

But if this was Katarina's case, she has many options of escaping with her skills AND Zhonyas. Katarina is also similar to Lee Sin when it comes to escaping the enemy by jumping to wards and allies.

So how can Talon escape?

Would it be a good idea to make an Item that's an AD version of Zhonyas? An item that can benefit both & Talon?

BUT WAIT! There's more! This item isn't FREE USE for all AD assassins. It's ONLY for Talon and Nocturne. This way, Talon and Nocturne can still survive longer rather than getting popped in one go when they initiate in the team fight.