i've played lots of class in sonny2.

the best character comes from Speed Biological which has shadow blend, withdrawal, and crystallize.
In PVP, the important factors for the best character are
1. early turn - yes you need some speedy item, and have to pump speed point.
2. stun skill - so that you can put a powerful opponent out of battle while you and your army take care of the rest of them.
3. high piercing rate - you can pick an opponent teammate off IN ONE SHOT(eg. Electric Psychological)

and... the worst character comes from Biological too. A Toxic Biological or a Poison Biological.
this character isn't so fast, doesn't have any stun skill. yes it can achieve amount of poison piercing. but poison piercing is almost useless because the main damage is DOT, not instant damage. so Veradux probably can shield that high piercing damage easily.
Toxic Biological is weak against mind freeze and silence skill.
it needs many strength. so not very accurate
it's not a tanker of course.
doesn't have some helping skill or healing skill.

As Level 30

Speed Biological deals over 30k damage with withdrawal
Strength Biological deals about 15k through destroy
Electric Psychological deals almost 20k instant one shot damage to sidekicks
Dark Psychological deals 10k~15k damage in a very simple combo
Hot blooded Hydraulic deals 6k~7k damage continuously
Cold blooded Hydraulic deals kinda 6k damage without concerning about focus

BUT TOXIC BIOLOGICAL CAN'T DEAL THAT MUCH.
NO ULTIMATE SKILL BASED ON POISON.
ABOVE ALL, IT CAN'T BEAT THE CORRUPTOR!

Wouldn't that be the worst build, not class?

Wouldn't that be the worst build, not class?

Yeah I agree ! Your build is not strategical....Krin must have checked all the methods in the game before having released Sonny 2 !
Do you know what I mean ?

LOL no I meant that his terminology class should instead be substituted with build. Because both of his best and worse 'class' come from the same class.

I think Toxic is the worst but it's still fun!

I think Hydra( water class) are the weakest class. Because it don't have strong attack and not very good at skill. But if you know it trick you will be very good at it.

Wrong. Hydraulic class focuses on pure defense or pure attacking prowess, I don't hat you mean by weak skills, but with the Cold Hydro build you only need 2 skills to own pretty much the whole game and the Hot Hydro it's just straightforward damage. Its beauty lies in it's simplicity unlike those messy combos you'll need in other builds.

You forgot the Phsychological Shock Combo. (High Voltage+High Voltage+Shock Coma+Shock Coma+High Voltage+Retrograde. Spending all attributes on speed is and having Overdrive as a passive skill, this will damage a target for 120% of their health.)

copied form Sonny wiki.

~~~Darth Caedus

poison bio is one of the strongest in later game.....
- tank damage.
- highest piercing in the game

not very good as a legend run cause no stun or heal aid...

yes, in LATER game. It's not gonna get you past the tough enemies in previous zones before it even starts to become powerful. That is if you re-spec afterwards.