SS: OP. Can solo whole armies with very broken abilities. Reserved for the best VIP heroes.

S: Carry/ Very Strong Utilty. Heroes that can deal insane damage, stay alive and stall enemies for a long time, or have battle changing utility.

A: Very Useful. Heroes with great utility and damage but don't necessarily change the outcome of battles on their own.

B: Useful. Heroes that have decent damage or utility which will make up the numbers within your formation.

C: Niche/ Slightly Useful. Heroes that can be useful depending on the situation but are often outclassed by other options. High star purple rarity heroes can be a good replacement.

D: Weak. Heroes that do not perform well and should be avoided if possible. High star purple rarity heroes will be better than these options.

F: Terrible. Heroes that can be detrimental to have within your formation. Replacement with low rarity heroes will likely be a better choice.