[u]Mobility[/u]:
change this to increase maximum sprint speed, slide distance, and jump ability speed, height, duration, and/or distance. If you wanted to give this another minor bonus to increase incentive, do something like increased airborne accuracy, weapon dexterity, and/or weapon reload speed
For the "enhanced" (exceeding 100) secondary effect, this could refill a portion of your jump when it runs out, with the maxed stat granting an additional full jump
[u]Intellect[/u]:
this should increase the amount of super energy you gain from defeating targets, damaging combatants, and collecting orbs.
The secondary effect could include increased orb drops from supers or a chance to drop another orb each time one is created
This is assuming these are not phased out next year, since there was no mention of them in the stat changes, and both are obviously very niche or generally undesired stats.
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Having mobility affect jump ability speed would definitely make titans and warlocks want to invest in it. So hunters could stop whining about it.