There are many champions you could make that are black.
It doesn't matter what their skin colour is. You could make a black champion who wields a flail and fights as an ultimate Noxian soldier lore-wise. Or make one with a gunblade and say he is from Pitlover.
There is absolutely no reason why they cannot make more brown and black champions. Skin colour would have no effect whatsoever on their role, skills or viability. It MAY have an effect on their lore, but that's about it. --- PSN: Darkestmerc Xbox 360 GT: Darkermerc
I give this topic an 8/10 on the trollometer, look at all those responses. --- 'This guy has really mastered adventuring. City burning down, populace about to be sacrificed to god knows what...better loot everything'