Since GS is more or less the king of Mobility, perhaps this can be augmented into its F1 ability.
Vault:
Range: (lvl1/lvl2/lvl3): 150/280/500
Radius: 100
Combo Finisher: Leap
Use your blade to leap to target area and gain Fury (10 seconds) striking any targets in your path. 50% damage dealt to targets in travel. 25%/50%/100% (lvl1/lvl2/lvl3) Bonus damage dealt to targets in target location.
Ground Targeted ability, with a relatively short range, and a small radius requiring accuracy with the leap. Giving a small amount of mobility, with the utility of Fury and a leap finisher and added damage for proper execution landing the leap on a target.
Numbers may need some tweaking but, meh.
Zietlogik [Warrior] Chronologix [Ranger] Ziet The Dreaded [Necromancer] Zietlogic [Revenant]