Warrior - Clout(9, str + 20%)
+ Sorcerer - Acuity(Mag + 20%)

+ Fighter - Sinew(more weight)
+ Fighter - Exhilaration(critical hp = + 35% damage)
Strider - Dexterity(2, climb monsters faster), maybe can be replaces by gloves of might
Strider - Dumping(3, no recoil bow shot)
Strider - Eminence(5, jump atack +30%)
Strider - Arm strenght(9, halves stamina for climbing)
Strider - Leg strength(9, minus one level of weight load)
Ranger - Trajectory(6, arrow distance + 30%)

Opportunism (more strength when climbing on monster)

Strider to 9 level
Warrior to 9 level
Ranger to 6 level