I updated to version 0.3 and renamed it consulting expert, using real world consultants skills as a basic and giving healing powers that come within the recipient, not the healer!
This class is a supporting class. Of course, it is not for those wanting to be the major party damage-dealer. The class is weak in combat as a solo character, as much as any other support character ex: healer. It supports better than any other class out of combat (better than a spell-caster, with no expending of spell slots). In combat, clever use of his help may win the day No spellcasting, supernatural abilities that may count as non magical in D&D but never in a realistic game. It is a chassis for any profession as a sub-class with no might, backstabbing or spellcasting (see d20 Modern Smart, Dedicated and Charismatic heroes and several 3.5 prestige classes for non-combat oriented examples).
Some magic training from multiclassing or a feat may be required for cantrip ranged magic attacks, or strenght or dexterity for physical ranged attacks. This class is not designed to be on front line, so high constitution is not required.
Solution Provider: this is similiar to the bard inspiration, usuable only once a round with no restriction. This is the main class combat ability.
High level ability: Team work extra surge action is of course worthing more for a fighter, a spell-caster or a rogue. Ultimately, it will provide as many surges to the entire party as if this character was a fighter, so it is not OP, just more flexible. Use magic device may offer an extra offensive role to the expert as magic items should be available (at 14th instead of thief 13th level).
Multiclassing: A few levels of fighter may give more defense and damage rating, spellcasting classes may provide useful combat cantrips, especially one with the same favoured ability. Rogues expertise is more useful combined with the skilled feat, since expertise may only be chosen once per skill...
Your opinion ?