@Meddler Can Maokai get a 'Total Damage Reduced' stat on his ult?

The title says it all. It would be really nice to see how useful your ults has been through out the game. Right now, using ult on Maokai is something you just do, and hope for the best. You dont really feel the impact it has on a teamfight (except for the cool visuals and sounds). I also think it would feel more rewarding to play Maokai, a tiny change, which I think would be welcomed with open arms. :)