[@Zarkun]
Whoops I forgot to take that future sight part out of the all-seeing eyes XD And his magic's weakness if you punch him in the face he can't do anything about it XD
Shiro's weakness is electricity, much like Jump she cannot use her magic if electrified. Also freezing her would stop her, or just making her cold enough.
Well I called it Angel Slayer simply because I couldn't think of another name for it. I had a feeling it would cause a problem, I mean it's used by Angel's to slay things and is most effective when fighting monsters, or slayers, but is pretty much just ordinary water magic against normal people (or wizards I suppose). Gabriel was the archangel of water, so it made sense for it to be water. Pretty sure I stated electricity and ice were its weaknesses didn't I? I mean Ice can just freeze it and electricity is conducted by it. Enough heat will turn it to steam as well.
The ghost one is also affected by things like electricity when in ghost mode, and if you can't hit him he certainly can't hit you. He uses it to phase through brick and whatnot to make his job at stealing things easier. He has to make his entire body the ghost as well, so he can't just be like half ghost to let an attack phase through while slapping you in the face. Pretty sure an explosion would work as well against him.

The fact that Amelia is 14 would mean that she can't manifest many more orbs than the initial 18 she controls, most she can make in a day is probably 20 as controlling them takes a lot of energy and controlling as many as possible was her main concern rather than how many she can make XD and as stated she cannot control the last type she can make very well. Or at all. The pinks were meant to blow up after one use as well, but I might've forgot to mention that. Pretty sure 5/7 were kamikaze orbs, so she would have to use them wisely.

And I fail to not see weaknesses in Sophie's magic. I mean she can up her stats slightly (e.g. from a Nab to a Reedus XD) and use some basic elemental magic, if you just take her bracelet away she can't do anything. It's a holder type magic after all. I mean the peoples affection thing doesn't do much, the protection on travels thing more wards unsavory types away then anything. The diamond is somewhat...umm OPish I suppose. She is also kinda 13, just hit the girl. XD

If it's just the magic you have problems with I have no issue rewriting them. I might have worded them wrong/forgot to take some parts out which I thought were OP >.> (Like the future sight, could've sworn I got rid of that)