Raging Strikes (+20% damage to all attacks) and Quelling Strikes (reduced enmity) are the most useful ones.

From Arcanist the only ones of note are Physick (heals for about 350 at lv50), Virus (STR-15% on an enemy for 10s), and Eye for an Eye (The wording and durations are all over the place on the description but it's off the GCD and worth using on your tank).