(+)When firing at a teammate, evaporates all water-based effects (Jarate, Mad Milk, bleeding, and basic water)
(+)When airblasting, fire a burst of steam that makes enemies wet
(+)Airblasted projectiles make enemies wet
(+)-25% Airblast ammo cost

(!)Has the Rainblower tauntkill

(-)20% Airblast knockback
(-)15% Airblasted Projectile speed
(-)No random critical hits

(+)100% Crits on burning targets
(+)100% Crits on wet targets

(-)20% Critical hit damage

These are the making of a perfect pyroshark

(+)When you stop healing a patient, both you and your patient gain a speed boost depending on how long you were healing them
(+)If your patient is slower than you, they gain your movement speed (If healing a heavy, they get the speed of a medic)
(+)10% Ubercharge build rate
(+)Ubercharge gives all allies around you +30% Firing speed, +40% Reload speed, gain +50% Ammo from ammo packs and a speed boost for 8 seconds (the range of a buff banner)
(!)Healing someone for 10 seconds gives them a speed boost of 5 seconds, speed boost lasts for a maximum of 10 seconds

(-)Movement speed decreased by 10% when not healing a patient on wearer
(-)20% Max overheal
(-)15% Overheal build rate

Yes, this is basically a better Disciplinary action for the medic

(+)40% Damage bonus
(+)Press M2 to throw the weapon, and upon impact will deal 30-90 damage (depending on range), and fire into random directions
(+)Mini-crit on headshot
(!)Players can duel with this weapon for an OHKO on headshot, but only when within 10 meters(Not sure how much that is in-game, someone can measure that right?)

(-)35% Firing speed
(-)No random critical hits
(-)10 Second cool down when throwing your weapon

(+)Fires special arrows that price through up to 3 targets
(+)500% Clip size (5 arrows in a clip)
(+)25 Max health on wearer

(-)Fires tracer rounds
(-)45% Projectile speed (Maximum speed of a flare)
(-)Only deals 20% Damage to buildings
(-)Will mini-crit whenever it would normally crit

(+)Grenades explode on impact
(+)15% Reload speed

(-)No random critical hits
(-)33% Damage to buildings
(-)33% Blast radius

Rate my engine weapon and spy weapon too, no one ever did and I'm wondering if they're op or not

(+)On use: Increase firing speed, reload speed, movement speed, and take less damage from bullet sources by 30% for 7 seconds

(-)30% Damage vulnerability for 8 seconds after buff expires

(+)15% Build speed
(+)30% Healing from engineers on buildings (wrenches and rescue ranger)
(!)Buildings have the properties of a teammate

• (+)Buildings can be healed by teammates
  
• (+)Buildings are affected by banners
  
• (+)Sentries can deal random critical hits
  
• (+)Dispenser healing has the properties of a medigun (When a teammate is healed by this dispenser and has not taken damage for a while, healing is increased)
  
• (+)Buildings can be ubered
  
• (-)Buildings can take critical hit damage
  
• (-)Buildings are affected by Jarate, fire, marked for death, and Milk
  
• (-)Buildings take 50% of knock back from airblast, force a nature and mini gun, and takes no knock back from other sources
  
• (-)Buildings take full damage from weapons that deal only 20% damage to buildings
  
• (-)Buildings will have a light that will count as a headshot if shot by a sniper (This light will be near the top of the building)

(-)75% Healing from healing sources on buildings (Health kits, medics, dispensers only)

Not sure how this balanced this is, but I think it's an interesting concept.

(+)When attempting to back stab an ubered enemy, take the Uber from them for half the duration left (If you backstab an ubered medic that has 4 seconds of Uber left, you take away their Uber and you get it for 2 seconds)

(-)Deal no damage when backstabbing an ubered enemy
(-)Deal only the base health damage to an enemy (A soldier at 300 HP will take 200 damage from a back stab)

Another weird but pretty interesting weapon. Also please rate my Metal Melter

(+)50% Damage dealt to buildings
(+)Press the Reload key to either deal powerful damage to one enemy, or to damage multiple enemies
(+)When in Single target mode, fire will home in on the first target that takes damage
(+)When in multi-target mode, fire will home on on up to 3 enemies
(!)Single target damage changes depending on max health

• 100-125 Health: 25 - 100 DPS, builds by 25 damage every 3 seconds
  
• 150-200 Health: 75 - 175 DPS, builds 50 damage every 2.5 Seconds
  
• 300+ Health: 100 -??? DPS, builds by 100 damage every 2 seconds

(!)Multi target mode deals 50 DPS

(-)Airblast erases projectiles rather than reflecting them
(-)No random critical hits
(-)50% Afterburn damage
(-)75% Afterburn duration

(+)Press the reload key to change ubercharge, up to 3 charges

(!)List of ubercharges

• Mini krits: Mini crits for 0.8 seconds
  
• Mini Uber: 50% Damage reduction for 0.8 seconds
  
• Mini heal: x5 Healing for 3 seconds

(-)10% Max overheal
(-)10% Uber build rate
(-)2.5 Second cool down between ubercharging

You're not making this easy, man

(+)Press the reload key to throw your knife
(+)Getting kills increases the amount of knives you can throw (No limit)

(!)Thrown knives deal 65 damage, and act as a mini crit when landing on an enemies back at 40 meters or less, above that range they act as a crit when landing at the back
(!)When you have gotten no kills, knives recharge every 5 seconds at a cap of 3 knives
(!)Knives have the same properties as a flare (Same hit box, projectile speed, affect to gravity)

(-)Backstab deals only the base health of an enemy (a soldier at 300 health will only receive 200 damage)
(-)10% Firing speed

Yes, another weapon that's a reference to something, how did you know