New item for all in champions

Tanks are in a great spot, 3 really nice items (Deadmans / Randomein / Sunfires)

All in champions like Tryndamere/Jarvan/Aatrox really have no ways to really survive in the mid to late game, and can be brushed off with CC and take lots of damage from magic pen / armor pen (runes)

The Phantom dancer really helped assassins alot, but not so much for all in heroes.

Tanks have nice damage, bruisers also have the Black Cleaver to compete with tanky top laners, but all in heroes don't. (One of the reasons Lee sin falls off so hard)

So far the game doesn't really have anything for all in champions, except GA and Hexdrinker and PD. It's also very hard to get lifesteal for all in champions, since you need more damage first off, to really life drain anything.

Picking Warlords bloodlust also takes away alot of damage from Ferver. And when comparing it to Grasp of Undying. . . (another reason all in heroes aren't seen in top lane)

TLDR

Items and masteries support tanks and bruisers more so than all in champions.

Solution; more items such as
AD or AP - gain AR/MR per minion or champion kill (Garen)
AD or AP - gain AR/MR from maximum AD/AP (Jax)

Unique passive items that grant immunity to armor pen / magic pen