Board Thread:Questions and Answers/@comment-37543814-20181118021945/@comment-33711316-20181118022910

Not every unit can be a hard hitter, the best way to figure out what units will do a lot of damage is to look at their passives. LR Saiyaman 1&2, for example, gives ki and DEF to allies and lowers Extreme class enemies DEF, while SSJ4 Goku has 150% increased ATK and a chance to counter enemy Super Attacks. Out of these two SSJ4 would be a Hard Hitter and Saiyaman 1&2 would be a support.

Units that have a passive ATK increase of 100% or higher will usually be what you're looking for when it comes to main damage dealers.