How to activate the black attribute, do you know?

Other than Mathematical Olympian, there seems to be no use for anything else.

What skills are used in the Mathematical Olympiad?

That’s the 5 Olympiads and there’s nothing else to play with.

There must be a percentage of blood loss in the later stage

The same skills cannot be superimposed.

Barbarian's damage is higher, 2x physical

Mathematical Olympian is just okay in the early stage, but Barbarian is still better