A mid aggro build for Thrall
hit and run if you are solo the lanes but if you have the whole group at your side then full attack but always keep in mind not to go first.
some skills i suggest may change with your preferences for exaple
at tier 6 you can chooce "forked lightning" instead "tempest fury" if the fight is a win win
at tier 3 i suggest "frostwolf's Grace" because assasins always must have an istand heal.

vote if you like it and have good kills