Guild Wars 2

This is not a Mount.

This is an item that has infinite uses and replaces your “skill-bar” with one ability.

Blast off the ground, damaging nearby foes and leaping to your target.
Leap damage: 248
Landing damage: 596
Radius: 120
Combo Finisher: Leap
Range: 1200
(10 second cool-down.)

Three reasons why this won’t happen:

A: It’s an incredibly unbalanced move action you can use passively to gain an unfair boost over everyone who has it making it a must have or lose item in places like WvW.
B: No racials have combo finishers or creators in any way and are often inferior to class based spells mostly being flavour stuff for fun And i doubt an item would be any different
C: There are several skills on the engineer like this, I believe there is a similar one for thieves as well where you dodge backwards and fire instead. – Check out a new class instead of begging for new items.

Having unlimited used would be dumb. All non-engie bundles either break after a while, or have limited uses.
Also – The damage capabilities are just stupid.

If ANet put it in, it’d be like this.

Experimental Jetpack:
“Enough fuel for 10 uses, 10% chance to explode on each use. Note: Highly explosive – Use with caution.”

Highly Explosively meaning it will instantly kill you.