You won’t feel stronger with oracle since it has no offensive skills, you will feel more defensive. Oracle has some nice utility through mob drop/resetting, and of course Arcane Energy provides bonus stamina for those sprinting swordies and monks.
I only know of 1 oracle main (oracle2) in these forums. @Ynirie , perhaps you could provide some info on how you feel about Oracle in PvE?
Edit:
My attention was drawn to something interesting regarding the new card system + melstis:
(This
is from an older post)
Guy stacked 7 Chapparition Cards ([Card Slot Equip] Increases magic
attack power by [★]% for 10 seconds when using an SP Potion.)
Not sure what the actual cap for per card equip for iTOS will be but
if this effect works with Melstis it’s gonna be a pretty game breaking
combo, lol.