Due to the large differences between different game modes, this list considers effectiveness according to their performance in Online Battles, generally considered the most contentious mode, when attacking. It also assumes players have access to all characters and gears and does not take into account the difficulty of acquiring them. Finally, this list will always be heavily subjective and cannot represent the opinions of every player.
The Tier List is comprised of six tiers, with Tier 1 consisting of what are generally considered the most useful characters and Tier 6 consisting of what are generally considered the least useful characters. Characters within a tier are in alphabetical order.
This section ranks Metal characters in their own right and is not to be mixed in with Gold Characters. Their effectiveness is to be evaluated including their passives evolved and maxed out.
- Catwoman/Batman Ninja
- Nightwing/Batman Ninja
- Shazam/New 52
- The Batman Who Laughs/Metal
- Black Adam/New 52
- The Merciless/Metal
This section lists the absolute best of the best, the characters that have powerful stats and passives that will never let you down.
Characters here are very powerful, but not as strong as the top-tiers.
Characters here are sort of in the middle; they aren't too good, but not too bad either, making them considered okay.
Characters start getting a bit bad here. Some of the characters in here are good beginner characters, but their passives are why they aren't better.
Characters in this tier are really bad. These characters don't have much use in battle, as their passives won't help themselves or others much.
Characters here are just the worst of the worst. They may be good early-game cards as one often starts with these, but they rapidly become absolutely useless later.
- The usefulness of characters fluctuate over time; the general direction is newer characters being more powerful and older ones become obsolete. However, a few characters have been updated to become stronger, most notably Batman/Blackest Night, and less prominently Black Adam/Regime, Wonder Woman/Red Son, among others. New gear and characters can also sometimes empower old characters. For example, the addition of Cloak of Destiny elevated Bane/Luchador from decent to godlike status after its release. Batgirl/Prime enjoyed surges of popularity from both him and Ares/Prime due to their reliance on starting power to quickly wipe out teams. Aquaman/Prime is nearly invincible with Tantu Totem, but practically unplayable without it due to his unique special 2.