Can we give tanks ONE good item?

And I’m talking one item that makes them an actual tank.

I’ll give a good example using the mmorpg logic of “tank sacrifices damage, to draw threat to themselves and become tankier” Now this has a few main aspects that need to be taken into account.

1. They sacrifice damage.
2. They draw threat to themselves
3. They become tankier.

Now. 1 and 3 are pretty easy. To sacrifice damage, give the item build a debuff that flat out reduces their damage dealt by a percentage. I’d say roughly 30%. Now to become tankier, again. Easy. Raw stat values or even a flat out %damage reduction.

Number 2 is where things get difficult. The best idea I’ve come up with is giving this item an aura (yes riot, I know you hate auras) similar to an old Maokai ultimate.

This aura would give all allies inside it a damage reduction effect, and thus would force the enemy to focus down the tank, ie drawing threat.

So over all the item would look like this.

(Insert badass name here) Stats. Probably just health. Unique passive - damage dealt reduced by % Unique passive - damage taken reduced by % Unique passive - team wide damage reduction aura.