Adaptive Helm makes azir completely useless!

As i was playing a game with Azir, i noticed that i wasn't doing any damage at all to the only tank on the enemy team. even though I was fed and was almost full build. the enemy tank had only one magic resist item, and that was adaptive helm. seeing as how Azir's main damage is his W, the damage he can do is little to nothing now because of that single item. seeing as how tanks kind of got a huge buff this patch, it really makes it hard to do anything when the tank is allowed to literally walk up to me now and chase me away. in my opinion it really isn't fair when Azir's main damage is now gone because of that one item.