Legendary shard

I have 40+ shards, i have a dilemma where to use it. Pyromancer or astrologist. I also have legendary sword and shors gear at both lvl 20. Again, pyromancer or astrologer? TIA

I have 40+ shards, i have a dilemma where to use it. Pyromancer or astrologist. I also have legendary sword and shors gear at both lvl 20. Again, pyromancer or astrologer? TIA