Does it really matter how practical the item is? Cosmetics are supposed to be silly and fun.
practical no, looking good yes. when i say it looks silly, i just mean it looked a little off when the warlock holds a sword as if it were a staff. a sword is heavy, and the warlock holds it outward in an unnatural manner. you can notice this jarring effect a bit on the scepters and the magic wand too, since the warlock leans on them as if putting weight on them despite them not touching the ground, but those are at least light enough that you don't notice it much.