User blog comment:Lokiwg/Runes Lets talk about them!/@comment-24090792-20140902223434

imo APen and MPen runes should give their users equal benefits ( not equal numbers ... benefits ) but sadly, current APen runes offers much more to their users than MPen runes do.

it is kinda the same problem for both flat and scaling AP runes when compared to AD runes but its much less sever than that between APen and MPen runes.

and for survivabiltiy runes i think it will be nice if riot make minions and jungle monsters do a mixed damage instead of all physical one ( like caster minions do magic damage and melee minions do physical damage )