The other Sprites are significantly better in that their main focus is supporting your knight and your party, something Drakon lacks.... a lot.

But I've heard Backfire Barrier is fun as Vog to use, otherwise their doesn't seem to be anything limiting your choices for Drakon.

Hey there.

I have a Drakon myself. I chose concussive firebolt, backfire barrier, and explosive firestorm.

Here's my reason for choosing said skills. please note that I have tried them all and choose exactly what fit my playstyle. So other's methods may vary.

Concussive firebolt- I chose this one because I am mainly a gunslinger. Because of this, I will and mostly am likely going to use the swiftstrike buckler. (SSB)
The firebolt doesn't cause stun all of the time but more often than not it allows me to use the stun for escaping near death, Stunning an enemy Like a trojan or lumber if they're about to smash a team mate, or stunning something when my (SSB) is broken.

Backfire barrier-This one was chosen over the other option for me to make a quick escape and heal up. Gunslingers have one thing that makes them great things in party, and that's mobility. Combine this with movement speed increase (MSI) and you're highly untouchable. (Provided you don't have lag)
The speed given is 1-2 seconds. It isn't much, but its enough for a getaway.

Explosive firestorm-This one is up for debate, but I have used both of them. I found that explosive was better suited because when the other ability activates, some party member's computers can sometimes not handle the buff graphics, including mine when it kicks in. So I chose explosive instead to let my drakon to put in some work too.

Some spectacles might arrive here too as some people just don't like the dragon. But I hope my reasons helped in some way.

Cheers.

I'm going to go against some people here:

Meteoric Firebolt

I noticed that this Firebolt has a much better knockback, and surprisingly can disrupt enemies, like that last far away annoying rocket puppy in that elite arena.

Scorching Barrier

I frankly don't think Backfire is worth it after those MSI buffs, and Zeddy I think observed that this barrier can do damage equal to a Blitz charge attack on several enemies.

Explosive Firestorm

Apparently, Frenzied's buff now caps at 4 seconds, no stacking past that. Derrrrrrp.

Scorching barrier is extremely lovely with a fast weapon. If only I could have both...

I feel like a kid who is forced to choose between two candy bars.

Bleh, who needs a fire vial with a Drakon's Meteoric Firebolt to shut up Gun Puppies?

Draycos, I think the better question is why wouldn't you stay within close proximity to enemies in order to do damage equivalent to a Blitz charge while remaining mobile and getting an enormous defense boost? You can still shoot stuff, you know.

EDIT: OP, is your name based off the Inheritance Cycle, by any chance?

concussive firebolt deals stun 50% of the time, which seems pretty good.
meteoric firebolt can interrupt enemies, and has a larger area. I prefer it to concussive.

backfire barrier's MSI is pretty good. despite not having it, the buffs gave me ideas on how is it easy to dodge something at that speed.
you can kill a lumber in 10-15 secs with scorching barrier. nuff said.

explosive firestorm deals damage randomly, but if you can keep the enemies in, you will kill a lot.
frenzied firestorm gives a non-stackable 4 secs buff. it stacks with the droppable buffs, but it's just 4 secs. don't get this until OOO does something.

Drakon is a great Sprite for a Bomber, like me, who uses 1 Sword & 3 Bombs.

The Firebolt Skill is great at activating switches from afar & having the Concussive Ultimate Upgrade, the Stun+Fire can really come in handy, disabling hostile turrets from a safe distance before going in for the kill.

The Barrier is useful in some situations. Taking down Lumbers has never been faster & the Backfire Ultimate Upgrade allows me to catch up with my Party if they're ahead or going to places faster. Although, the speed boost is minor in duration, it's certainly noticable.

The Firestorm, despite what most people say, is my favorite Skill. It's basically a Fire Mist Bomb, giving you the feeling of having 5 Weapons. I chose the Explosive Ultimate Upgrade, because with the vanilla version, I wasn't able to harm Fire-Themed Monsters. Also, explosions.

I use the Sword Damage Bonus: Medium Perk on my Drakon to give me a little extra "oomph" with my Sword, since my Bombs benefit from my Mad Bomber Set & Elite Boom Module.

No, you see Dibs, after I got a Meteoric, THEN my Firebolts began shutting up Gun Puppies. At least on Elite.

Concussive, Scorching, Frenzied.

The only ones worth using are backfire barrier and frenzied fire storm. The rest are wasted time you could have spent charging up a weapon.

an elemental/shadow/normal unnerfed DR if you spin around counterclockwise.

But orbs spin without depending on player movement, so spinning does nothing. But it is awesomely powerful.

Since apparently Frenzied Firestorm was nerfed, I guess Explosive is the best.

EDIT: Derp fail. I thought you were talking about player turning, not actually going around.