Hello ^^
My brother and I start Tree of Savior togother and I don’t know that class I choose.
I would like to know that class would be synergy with an Elementalist (My brother go on a Wizard C3, Elementalist C3 and Warlock).
Any class suits me, that’s why I want to know that to be helpful to my brother.
Thx in advance for helping me to choose a class 
Well any support/tank build would be fine I’d guess? Cleric is probably best, can never hurt to have healing.
Yep, I also thought to start with a Tank or Cleric.
Tank (Peltasta C3, with Squire C3 or Rodelero C2/Squire C2 and Shinobi for the fun ^^) for aggro mobs and don’t let’s mobs with my brother.
Cleric to have a heal but I don’t know choose wich class.
What he said. Since your brother will be playing an AoE damage dealing class, you’re best suited to support him by gathering mobs and holding them while he casts his spells or healing him when he gets damaged. I prefer the latter, I find that healing is much more important in this game than tanking. And I’ve played both.
Agree with @rya.reisender a cleric would probably do the best.
Dievdibris reduce some cooldowns, can heal and have nice AOE buffs, you could potentially choose that.
Chaplain has good auto attack buffs and sustain.
Krivis has good damage, so does Sahdu.
Paladin can tank the hell out of the world granted you build Cleric2
If you don’t like clerics, a good tank will do :3
Tank, as long as you get Peltasta it’s fine. All other choices should just be by what’s most fun for you.
Cleric, you have a lot of choice depending on whether you want to only support or also deal damage and then again if you want to deal damage with normal attacks mostly or with offensive heals/spells. Really anything can work except Bokor (Bokor is nice, but if you have a permanent leveling partner, it’s the worst choice).
If you want to be full support, then just go for Priest C3 and Cleric C2. Then you have all the buffs and good heals. That leaves you two more class slots which could be Chaplain or Krivis or Plague Doctor or maybe even Oracle.
Kabalist. Safety wall and gives all your SP back every 2 mins.
GG
Thx for your answers.
I will test a Tank and a Support when I will found a good build.
One more question, a friend tell me for synergy with a Elementalist C3, I have a Linker Class too. It’s a good synergy?
Either a peltasta to pull everything on screen together for you to then AoE, or a cleric for Safety Zone so you can stand still and nuke with no interruptions.
Not archer. He’ll just kite all those mobs away from your AoE spells.
For the tank, I want to take this build but by modifying it a little.
And for the Support, take this build or a build with a Monk.
One more question, a friend tell me for synergy with a Elementalist C3, I have a Linker Class too. It’s a good synergy?
Yeah, Linker/Thaumaturge benefit other Wizards too, but the synergy isn’t as good as with Peltasta and almost all Cleric classes.
It would work better if you were three people, but not so well for duo.
Ok, thx. We will be a duo all the time. I also want to be helpful in dungeon.
In various forums French, a lots of people say, there is to many Priest from the dungeon lvl 90, it’s true?
There are plenty of priests, but they are also in high demand. A dungeon run with 3 priests is much muuuuuch better than a dungeon run with no priest.
I will try a Support with this build
But I don’t know if I go on Full Support, Semi DPS or DPS with Str/Dex but I change C6 and C7 to others class (Monk, or Sadhu)
Alice’s full support build is nice too (basically same as Wurstbär’s except for Krivis instead of Chaplain).
And yes you don’t have to follow these build strictly, but before you start you should decide if you wanna be STR/DEX/CON, INT/CON or SPR/CON, because you can’t switch that later.
Chaplain isn’t really a full support either. It’s pretty good at normal attacks. It basically has a skill that scales your normal damage with INT and SPR.
You can basically go everything with either Peltasta 1 (full tank) or Cleric 2 (full support)
These classes are enough to fulfill their roles, the rest is up to you. Want to dive deeper into support? Priest is always a good choice. I wouldn’t recommend Monk though, as the class is broken in the current state 
Technically the best duo would be a QS3.
IDK why all these people are saying support, I guess just to make it easier for you to find a group at endgame?
Ele3 QS3 duo would hit get to level 200 likely faster than any other combination by FAR.
The real answer is linker2 chrono3.