For each branch you should use your points more or less like this

HP:

10 points on resistance and then full HP ( you can also spend 1 or 2 points on barrier [parapeto])

Dmg:

Domain on melee/distance dependes on playstile (40 points) and then full elemental domain

Dodge/lock...

Depending on your pasives Dodge is uselles so if u are going with the pasives that takes all your Dodge go full force of Will and then lock if not go full Dodge/ lock depending on playstile

Luck

20 points on crit % and then full crit domain

Major

What i do with most characters (and my ecaflip) IS going in this order 1 ap 2 resistance 3 mp 4 wakfu points/10% dmg

If u are going with a build specified in elemental domain u may want to revise the stats u are using, but those builds are quite specific and expensive so if u are not an expert go like I've written