Let me present you with: 

The Edgelords (Six-Squad)

Imp/Devil Mercy

Nevermore/Plague Doctor Reaper 

Cybergoth/Industrial Zarya

Odette/Odile Widowmaker 

Blackhardt/Bloodhardt Reinhardt

Ultraviolet/Punk Tracer

Straight from Hell: (Five-squad)

Oni Genji

Demon Hanzo

Hellfire Reaper

Devil Mercy

Mei

We be Pirates: (Four-Squad) 

Corsair Ana

Bilgerat Junkrat

Mako/Sharkbait Roadhog

Blackbear/Barbossa Torbjorn

Waiting for your DPS  to get on the payload (Two-squad)

Overgrown Bastion 

Griefhardt Reinhardt

Uprising (AKA PTSD) (Six-squad) 

Null Sector Orisa

Null Sector Bastion

Lieutenant Wilhelm Reinhardt

Combat Medic Ziegler Mercy

Cadet Oxton Tracer