Maokais passive is pretty blah late game
Unless they have a melee dumb enough to trade basic attack with Maokai in the middle of a team fight, his passive basically shares a cooldown with twisted advance, because there is no other way to consume the charges without that gap closer.
Would be nice if there was a way to make it more efficient, e.g. Maokai gains bonus attack range based on level when sap magic is fully charged.
5 if not 10 bonus attack range per level when sap magic is fully charged/consumed.