You get a buff, you get buff, and you get a buff!

Nobody likes nerfs so here's some buff ideas for every Legend. Some bigger than others due to their current power standing. 

Ash:
Tactical: Gain 2 charges
Ult: Only Ash and Allies can use portal

Bangalore:
While encompassed in smoke enemies take 5% increased damage. Bangalore can resurrect allies 10% quicker in smoke

Bloodhound:
Passive: Tracker shows team size

Caustic:
Allies can also see enemies while in Nox Gas

Crypto:
Additonal Passive: Using survey beacon shows all enemies on map for 15 seconds (like the satellite on KC)
Tactical: Drone Flys automatically in a 360degree pattern. (Can turn that option on/off to work as current)

Fuse:
Tactical: Knuckle Cluster now disorients and stuns enemies similar to Valks Q

Gibraltar:
New Med item ability: Gibraltar eats Mirages porkchop to restore 50 health

Horizon:
Ultimate: Black Hole does damage again

Lifeline:
Ultimate: Replaces care package with a loot bin, with the same loot. It's basically an instant ability, don't have to wait for it come down.

Loba:
Ultimate: Can grab 3 items from Black Market, including death banners.

Mag Maggie:
Tactical: Gain two charges, and there is no velocity drop to drill
Ultimate: Wrecking Ball no longer stuns teammates
Passive: Highlights damaged enemies for 3 seconds longer

Mirage:
Passive: Increased invisibility when downed +3 seconds
Additional Passive: Increased movement speed when a decoy is shot

Newcastle:
Passive: Rez is silent

Octane:
Additional Passive: As a speed character, his strafe speed remains the same for every weapon

Pathfinder:
Tactical: Decreased cooldown for grapple by 2 seconds
Additonal Passive: Increased speed traveling on ziplines

Rampart:
Tactical: Walls gain shock/dmg ability similar to Newcastle's wall.

Revenant:
Tactical: Silence now disables enemies while they're using Tacts/Ult, i.e. Octane Stim/Shiela/Valk jets/etc

Seer:
Ultimate: Can now be recalled, any remaining time on Exhibit would immediately come off new ult cool down.

Valkrie:
Tactical: Increased Missle Swarm dmg (little bit, not alot)

Wattson:
Ultimate: Pylon can overcharge full shields, giving an additonal 50 shield health which slowly drains when no longer near Pylon

Wraith:
Passive: Receiving warnings when Allies are being targeted as well.