It is already difficult to be a tank against physical damage as it is nowadays, due to so many AD champions having ways to bypass armor, be it armor shred or penetration, be it true damage, or be it even magic damage.

If anything, more AD champions should be like Riven: Not having any innate way to bypass armor, instead having to look into items if they want to actually bypass armor stacking.

Not to mention the armor penetration and reduction items are very strong, and we have a ton of them. Divine Sunderer, Black Cleaver, Eclipse, Lord Dominik’s Regards, Mortal Reminder, and Guinsoo’s Rageblade. Compare it to the AP champions, which only have Void Staff for the most part. Very few AP champions have synergy with either Riftwalker or Guinsoo (which would also allow them to bypass MR). Lord Dominik is one of the worst to face because it also punishes you for stacking HP (especially when combined with BotRK), which would be the counterplay for tanks against armor shred.

I once got shredded as a Malphite by an Akshan. When I looked into the damage done, he did almost half magic damage to me. And no, he wasn’t building full AP. In fact, that was BEFORE they added AP ratios to his passive. Akshan is just one of those champions that is difficult to build against because he has a lot of mixed damage.

In fact, full AD teams are not an automatic loss against teams with a tank like full AP teams are. Full AD teams are supposed to have a very hard time unless the opponent has no tanks to take advantage of your team having poorly balanced types of damage. But thanks to the multiple ways to bypass armor we have nowadays, this is not the case.