This is easy but what is sub zeros real name

His real name is Bi-Han

Explanation:

Bi-Han

In the reboot continuity started in the 2011 Mortal Kombat game, the original Sub-Zero's birth name is revealed to be Bi-Han, and his younger brother's to be Kuai Liang. Both incarnations of Sub-Zero are depicted as warriors from the fictional Lin Kuei clan who possess the innate ability to control ice in many forms.

answer; i believe its comparisons you to see your strengths and weaknesses;

a ^^ hope this