I suggest removing the rank requirements from the current ladder and instead adding a bonus reward ladder for the select few who reach rank #250 and better.

Rationale:
Currently, when playing arena I have no reason to keep playing after having reached enough points to stay at Duelist I, as there is a huge gap to reach the number of wins required to reach Warlord III. The points requirements from Warlord III and above are meaningless. Currently I'm at 2799 points which is more than what's needed for the top title of Eternal but I'm only at rank #1007 which is far below what's required for Warlord III. If the rewards are separate for points and rank, I would have some motivation to keep playing after having what's currently a wasteland plateau.