The Black Cleaver; Warmog's-Style Adjustment

The Black Cleaver is an item that can be picked up generically by a lot of champions with very little drawback, which enables a lot of fighter champions access to an unnecessarily strong amount of armor penetration for their otherwise designed-to-be-countered-by-tanks kits.

I know the item is also core on its intended users like Garen, Darius, etc and I don't want to see them lose it. My proposal is to simply activate the armor shred component at 3000 health just like Warmog's Armor. It will impact and delay the intended users, but it will force a lot of other champions to make a conscious decision to buy it in that they will also need to buy more health to make it worthwhile.

Of course, that means they only need 1 or 2 additional health items, but in my mind it would go a long way towards helping tank-top laners to at least get out of lane and might dissuade champions like Riven from getting the item in the first place or perhaps postpone it as a final item.