The game isn't exactly hard to beat in the first place, so that's not really anything to go by.
As for the listed abilities, while it's true that they're useful tools in general, that's exactly what they are. Useful in general. Not much synergy with melee stuff specifically.
Now if we're talking about shocking touch and blinding radiance for example, which both work for melee range only, that's a different story. Except that neither will do anything of worth in 95% of all cases, because either you might as well spend the AP to just kill the enemy, or can't get through the magic armor in the first place.
Does it still somewhat work? Probably. Is there any reason to do it, besides flavorbuilds? Probably not.
