Edmund
Kitana & Skarlet
I think that the majority (which is why the majority weren't shown) will actually have an impact.
This is, of course, assuming that these custom moves did not receive buffs. I don't see, for example, Jade's being used because she loses glow, doesn't have the ranged projectiles that are used in defender, and she doesn't have any close range threats (her B2 and 3 combo extensions are both high starters). Also Skarlet, gains boiling point which is horribly slow, but it does do decent damage and hits low, but I don't see anyone picking it because she loses tentacle and has no true reason to be upclose other than her .5% DOT ability
This is, of course, assuming that these custom moves did not receive buffs. I don't see, for example, Jade's being used because she loses glow, doesn't have the ranged projectiles that are used in defender, and she doesn't have any close range threats (her B2 and 3 combo extensions are both high starters). Also Skarlet, gains boiling point which is horribly slow, but it does do decent damage and hits low, but I don't see anyone picking it because she loses tentacle and has no true reason to be upclose other than her .5% DOT ability