Costume pieces giving added bonuses

How about making costumes more functional? As in they give added bonuses to your new kid and your units in battle. If u have both pieces of one costume, then it can give boosts in battle, they could range from

More attack
More health
Increased movement speed
Increased attack speed
Speed up charge time
Larger ability radius
Longer ability duration (ex, making time of poison last longer)

And other bonuses too.
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Customization Ideas

So I have some ideas for costumes and other customization options, u can tell me if they already have some of these features.

Costumes

Samurai
Viking
Pharaoh
Mongolian
Navy Sailor
Navy Admiral
Steampunk
Indian
Indian chief
Devil
Policeman
Gladiator
Hoplite
Buddhist monk
Conquistador
Celt
Martial artist/black belt
Space pirate
Faun/Satyr

Minor features (I put in names of characters who have these features cause I don’t know any other way to describe them)

Glasses

Mr. Mackey
Officer Barbrady
Mr. Garrison
Principal Victoria
Dougie

Mouth

Gordon Stolski
Ms. Crabtree
Shelly Marsh

Accessories (face)

- chin balls
- Conjoined fetus
- Eye scar (left or right)
- Blind eye (left or right)
- Red eye (left or right)
- Pupiless eyes/rolled back eyes
-

Be able to change your eye colour

- black
- Green
- Blue
- Brown
- Purple
- Pink
-

Body shapes

- Canadian
- Kindergartener
- Danish (american/Canadian version)
- Cartman
- Ike