A ranking system used in many games for diffrent charactes, or sometimes in a social order. they tend to go from Top to Bottom. Sometimes they will be ordered by number, but the problem with this is that it is hard to determine if 1. is the top or bottom tier. Selecting a bottom tier character in a video game is basically having lost at the select screen
Shiek's insane combo ability, needles, and speed make her Top Tier.