Pyro

The Pyro is a class who wields a Flamethrower as its main weapon. Along with the ability to inflict burn damage and a relatively high damage output, the Pyro also has the airblast mechanic, which can neutralize an enemy's uber with ease, reflect projectiles like rockets and arrows, and extinguish burning team mates.

6v6

Main Article: Pyro (6v6)

In 6v6, the Pyro is considered an offclass. Most commonly run when the defending team has über disadvantage while defending last, the Pyro's job is to neutralize the enemy team's über through the use of the airblast mechanic.

Highlander

Main Article: Pyro (Highlander)

In Highlander, the Pyro is considered a support class. The Pyro's main job in Highlander is to protect the Medic. It also has the jobs of displacing and neutralizing enemy ubers, spychecking to neutralize the enemy Spy, protecting its team's sentry gun by reflecting projectiles, and providing flank support when required.

Primary

Flame Thrower		The Flame Thrower is the primary stock weapon for The Pyro. However, compared to the other pyro primaries used in competitive, the flame thrower is considered to be at an overall disadvantage..
ESEA 6s legal?	Yes
UGC HL legal?	Yes
ETF2L 6s legal?	Yes
ETF2L HL legal?	Yes

Backburner		The Backburner is a Pyro achievement item. In 6's, it is rarely used, because the extra consumption of ammo for the airblast negates one of the Pyro's key roles. In Highlander it is most useful when a flank on the other team's combo is possible.
ESEA 6s legal?	Yes
UGC HL legal?	Yes
ETF2L 6s legal?	No
ETF2L HL legal?	Yes

Degreaser		The Degreaser is the most used flame thrower in competitive. The Degreaser has a faster weapon switch, but has weaker damage and afterburn. The fast switch is helpful in switching to a secondary or melee weapon (such as the Flare Gun) for an extra damage combo.
ESEA 6s legal?	Yes
UGC HL legal?	Yes
ETF2L 6s legal?	No
ETF2L HL legal?	Yes

Phlogistinator		The Phlogistinator is banned is most competitive TF2 formats. It is also at a significant disadvantage to other pyro weapons, because it means that the pyro is unable to airblast, one of his key functions in highlander and 6v6
ESEA 6s legal?	No
UGC HL legal?	No
ETF2L 6s legal?	No
ETF2L HL legal?	No

Rainblower		The Rainblower is a reskin of the stock flame thrower, which was released during the Pyromania update.
ESEA 6s legal?	No
UGC HL legal?	Yes
ETF2L 6s legal?	No
ETF2L HL legal?	Yes

Secondary

Shotgun		The Shotgun is a default Pyro weapon. It is just like the Soldier, Engineer, and Heavy shotgun. It has 6 ammo in it's clip, and it's a hitscanning secondary. It's works very well when staying with the combo primarily.
ESEA 6s legal?	Yes
UGC HL legal?	Yes
ETF2L 6s legal?	Yes
ETF2L HL legal?	Yes

Flare Gun		The Flaregun is the second most used secondary in competitive next to the shotgun. The Flaregun does 90 damage on normal to burning enemies, and 30 damage to non burning enemies.
ESEA 6s legal?	Yes
UGC HL legal?	Yes
ETF2L 6s legal?	No
ETF2L HL legal?	Yes

Detonator
ESEA 6s legal?	Yes
UGC HL legal?	Yes
ETF2L 6s legal?	No
ETF2L HL legal?	Yes

Reserve Shooter
ESEA 6s legal?	No
UGC HL legal?	Yes
ETF2L 6s legal?	No
ETF2L HL legal?	Yes

Manmelter
ESEA 6s legal?	Yes
UGC HL legal?	Yes
ETF2L 6s legal?	No
ETF2L HL legal?	Yes

Scorch Shot
ESEA 6s legal?	Yes
UGC HL legal?	Yes
ETF2L 6s legal?	No
ETF2L HL legal?	Yes

Melee

Back Scratcher
ESEA 6s legal?	Yes
UGC HL legal?	Yes
ETF2L 6s legal?	No
ETF2L HL legal?	Yes

Postal Pummeler
ESEA 6s legal?	Yes
UGC HL legal?	Yes
ETF2L 6s legal?	No
ETF2L HL legal?	Yes

Third Degree
ESEA 6s legal?	Yes
UGC HL legal?	Yes
ETF2L 6s legal?	No
ETF2L HL legal?	Yes

Fire Axe
ESEA 6s legal?	Yes
UGC HL legal?	Yes
ETF2L 6s legal?	Yes
ETF2L HL legal?	Yes

Axtinguisher
ESEA 6s legal?	Yes
UGC HL legal?	Yes
ETF2L 6s legal?	No
ETF2L HL legal?	Yes

Lollichop
ESEA 6s legal?	No
UGC HL legal?	Yes
ETF2L 6s legal?	No
ETF2L HL legal?	Yes

Sharpened Volcano Fragment
ESEA 6s legal?	Yes
UGC HL legal?	Yes
ETF2L 6s legal?	No
ETF2L HL legal?	Yes

Maul
ESEA 6s legal?	Yes
UGC HL legal?	Yes
ETF2L 6s legal?	No
ETF2L HL legal?	Yes

Homewrecker
ESEA 6s legal?	Yes
UGC HL legal?	Yes
ETF2L 6s legal?	No
ETF2L HL legal?	Yes

Neon Annihilator
ESEA 6s legal?	Yes
UGC HL legal?	Yes
ETF2L 6s legal?	No
ETF2L HL legal?	Yes