First Reinbo, now this O_o
And now, for... over-analysis time!
10HP, 1 damage per attack, except if you charge the basic attack or redirect flames from the low attack. Charged attack and redirected flames deal 3 damage. Any 3 basic hits, or one 3-damage hit, will knock down, and reset the knockdown counter.
Pressing and holding W/↑ while airborne, holding W/↑ through your high attack, or holding W/↑ to jump and hitting attack while still holding the jump button in mid-air, lets you hover. Pressing attack while hovering gives you an upward boost, but doesn't deal damage. Neutral air attack fires down, forward air attack fires straight, but has a longer windup and pushes you back, making it look stronger but still only 1 damage. Low attack can also be performed in the air, and looks cooler than when you fire it at ground level.
I think high attack should be renamed to jumping attack, since it hits opponents who are ducking with S/↓ and it's a jump without a knockup. It's also worth noting that you can only redirect neutral attacks while facing the attacker, you can't manipulate the attack around yourself to fire away from the opponent. The high and low attack inputs also can't be used to redirect, which feels like a missed opportunity. And double tapping left or right lets you dash in that direction with a flame jet animation that deals no damage but looks awesome.