since thornmail doesnt quite make these poor tanks feel immune to the enemy adc, and that makes the game not fun for them because its possible for them to die, i tihnk we should jsut make thornmail cause the owner to be impossible to target with autoattacks. To make things fair, as soon as someone on your team buys thornamil, the enemy adc becomes immune to any damage source whatsoever. cause hell, adc dont wanna die either. lets respect their right to live also.
This would be ridiculously unbalanced. Tanks are supposed to die if exposed to sustained damage for too long. This would make unkillable tanks and ADCs obsolete. Everyone would just buy Thornmail and ADCs would be completely useless, making a tank meta even more broken than the previous one, as wet noodle fights would be even weaker. All counterplay to tanks would be eliminated, and the only kind of ADCs that would be around would be the likes of Corki and Ezreal. For crying out loud, Azir might even end up being the sustained damage dealer since his soldiers don't count as basic attacks. Thornmail does need a buff imo, like giving grievous wounds for example, so ADCs can't just heal off of tanks. Just not something like this.
