Donatello stats, player maps, online system usage - Injustice 2

Usage points — If a character is listed as a main, secondary or third string fighter in someone's profile, they're assigned usage points as follows:
• Main is worth 3 points.
• Secondary is worth 2 points.
• Third is worth 1 point.

Use percentage — The percentage of players in our database for this game, who use said character on one of their teams.

Character string rank — Shows how many people have this character as main, second or third string fighter for them. Note: For team games this is NOT their position on the team.

Player skill levels — Entered skill levels for people who play said character.