I would recommend Wizard/Cleric or Warrior/Cleric.
Wizard does the most damage per second. There is no dispute about this.
As for subclass,
Cleric:
Is the best for Solo-ing. You might not think so, but it is. Without speed, you still have the HP Recovery skills such as Healing Orbit and Recovery Division. These will help you Solo a Giant or hardly use half the pots you would use with them. Also, if your fighting against monsters that give you status, Holy Spell will help give you immunity to them.
Bard:
People think this is the greatest because you don't get mobbed up and you have speed. Well, Noise is very helpful, but you can live without it. If speed is really an issue to you, there are things in the game for ALL players, it is called sapphire tablets, you can make drug of wind, so bard only really offers noise. Which is ok, but still not better than the benefits of Cleric.
Wizard does the most damage per second. There is no dispute about this.
As for subclass,
Cleric:
Is the best for Solo-ing. You might not think so, but it is. Without speed, you still have the HP Recovery skills such as Healing Orbit and Recovery Division. These will help you Solo a Giant or hardly use half the pots you would use with them. Also, if your fighting against monsters that give you status, Holy Spell will help give you immunity to them.
Bard:
People think this is the greatest because you don't get mobbed up and you have speed. Well, Noise is very helpful, but you can live without it. If speed is really an issue to you, there are things in the game for ALL players, it is called sapphire tablets, you can make drug of wind, so bard only really offers noise. Which is ok, but still not better than the benefits of Cleric.