>>27965859But why would subjective taste affect the "right" a pokemon has to be good competitively? Sure not many people like landorus, most outright hate it, but that doesn't mean it doesn't deserve to be good.
Most pokemon aren't even made to be good to begin with, they're just... made, sometimes improved, but GF has a very small grasp on just how powerfull small changes can turn out to be.
So my answer would be none, there is no valid reason for why a pokemon shouldn't be viable, subjective taste isn't one.