To reroll, go to your game settings, look for Delete Account, and follow the following steps. Rerolls are unlimited, so you can try your luck multiple times, but keep in mind that there is a 3-minute cooldown in between rerolls. That way, you get a fresh chance to summon and obtain the mercenaries you want. Rerolling consists in deleting your account and starting over. If you’re not happy with the initial units you summoned, you can always opt for a “reroll”. You’re given a certain number of chances to summon mercenaries when you start a new game in Brave Nine. This way, each is evaluated with respect to units of the same caliber.

The way around this is to make a tier list for each of the 3 categories of mercenaries. According to this logic, the 5-star mercs would be at the top.

The difference in skills and stat growths between the three categories is so massive it makes no sense to lump them all in one list. Mercenaries in Brave Nine are categorized into 5, 4, or 3-star units depending on their rarity and overall combat ability.

Brave frontier tier list march 2020