User blog comment:JBox2D/Tank killers/@comment-10767476-20140226080014

I guess it is obvious that such a champ would have to deal damage based on %max hp and target (bonus) armor. However, as all functions in the league are linear, it would be impossible to actually deal relatively more damage to a tank then a squishy in all situations. However, non-tanks deal more damage of course, so they could still be harder to duel. You could also have a polynomial (e.g., ^2) in %max hp or target armor, but I think that would be insanely difficult to balance.