I have Vulture without uni at 5* with 321 bios. Should I use 6 rut on him and use his bios to rank up his gears instead? I don’t have good speed villain and I have 3 6* rut.
His bios aren't that hard to earn ... 6* RUT is probably better used on many other heroes/villains.
He is a good speed villain with his Uni, though.