Amazon: Javelin And Storm Tree, Spirit Of Vengeance.
Assasin: Phychic Tree, Trap Bomb Tree, Phase Bomb, Phychic Scream
Barbarian: Throwing Axe Tree
Druid: Elemental Tree, Faerie Fire.
Necromancer: Malice Tree, Crossbow Tree
Paladin: Holy And Unholy Meele Tree
Sorceress: Fire And Poison Tree, Innate Skill Force Wall (The One Who Sucks Over All Others)
Most OF These Skill Trees Are Really Weak, Most People Just Ignore Them And They Go For Specific Build, The Thing Is All Trees Need To Be Equally Good, So All Players Can Try Each One, No One Build A Storm Amazon OR Sorceress Poison, They Really Suck A Lot, Another Thing Is, All Trees Must Be Able To End Game, People Is Force to Play Specifical Build To Finish All 3 Difficulties, Even Covering all Weaknesses, i dont know if in Median XL 2016 this will be fixed, but i hope in Sigma yes, because all skills must be good, so they are only a pre-requisite for the best ones, they are only a rock in path, a waste of 1 skill point, and it dont feel right, i know some people will not agree in some of these skill trees, but im sure in other ones yes. this is only a point of view, maybe mod creator have other plans in mind to fix it, and i know he will, he is wise in this kind of things.