Camille's passive gave me an idea for an item (since Rito has the tech now)
that and Ghost Scepter
> Ionian Box of Fate > > 3150 gold > Ruby Crystal + Cloth Armor + Cloth Amor + Null Magic Mantle + 1700 gold > > +150 health > +30 armor > +25 magic resistance > > Unique Active: Stun an enemy champion for 0.25 seconds. You then gain the following effects depending on the target's main damage type: > Physical - Gain 100% dodge. Receive 50% additional magic damage. Disarmed for 5 seconds > Magical - Become immune to magic damage and crowd control effects applied by magic damage spells. Receive 50% additional physical damage. Silences for 5 seconds
Let us consider 6 matchups using 4 champions:

v 
Holder: Ahri
Ahri can 1v1 Ashe with impunity though
becomes useless and Ashe can stun her
Holder: Ashe Ashe can 1v1 Ahri because she cannot be cced but also cannot stun Ahri; she must rely solely on her attacks
v 
Holder: Ahri Ahri can 1v1 Zed easily though not thoughtlessly. While Zed cannot pump in basic attacks pop his ult harder, he can still Q, E, and R just as well
Holder: Zed Zed can escape Ahri very easily, but basic attacks without his ult are not very useful. Neither Ahri nor Zed can kill each other in this scenario
v 
Holder: Ahri Ahri can 1v1 Darius but not with impunity. He can still fight back
Holder: Darius
Darius can almost certainly fight Ahri with impunity but she can still ult away. If however she were
, she would be fucked. Darius can still do a lot of damage but cannot E her.
v 
Holder: Zed Zed can kill Ashe easily though she can still stun him
Holder: Ashe Ashe is fucked because now she cannot kill Zed AND Zed can still pop her.
v 
Holder: Zed Zed and Darius are in a stalemate though they could both kill each other if they have no defense
Holder: Darius Same as above.
v 
Holder: Ashe She is fucked but she can still stun.
Holder: Darius Same as above as he can still E Ashe though he cannot hit her with W
As we can see, the archetype is being useful to both Mages and ADC against each other in a 1v1 scenario. The fairness is slightly skewed when throwing in Fighters and AD casters, but the efficacy on both is severely diminished.