The spy is the character that has many surprises and so many tricks that you can perform. The spy is known for trickery and stealth using his weapons that he has however not many people dont know how to use this effectively to trick the enemy. I know some important tips and tricks any spy should know about but be warned some of the tricks can be hard so F2P players should be warned.

This loadout is probably the best loadout when it comes to trickery which is what the spy is known for. Allow me to explain why this loadout is OP for the Spy

Pros:
The Amassador is the revolver that can be used if you have high accuracy and precision simply because you need to get crits from headshots - a gamer who has some sniper skills will be good at this. A headshot has a damage of 102 so if you wanted to kill a class such as the heavy who has a health of 300, you will need to headshot him three time.
102*3 = 306, Heavy = 300, 300-306 = -6 OVERKILL!

The Spy-Cicle is useful for quick get away from a Pyro.The Spy-Cicle has the ability to only get injured for only for a second when a Pyro hits him with any flame based weapons such as the Rainblower, the afterburn doesn't have any effect on the spy.

The Dead-Ringer is useful the wielder is trying to get away from anyone else but the Pyro.To use the Dead Ringer you need to Mouse2, which is to right click, you will see the dead ringer pop up on the screen once you clicked on mouse2. Now whenever you have been attacked by someone one you will automatically cloak yourself and you will see a fake corpse of you on the ground this tricks the enemy to think that you are dead.

Cons:
The Amassador doesn't allow any random crits but that's only for the amassador but if you can't headshot anyone then this revolver is useless to you. It also has 20% slower firing speed meaning that the Amassador has 80% firing speed which could put you at the disadvantage.

The Spy-Cicle turns the victim that has been stabbed into ice meaning that anyone can see that someone was stabbed recently and the will be on their guard and looking for the spy ; if the pyro manage to ignite you and you are wielding the Spy-Cicle, the spy-cicle will melt and it will take 15 seconds for it to regenerate.

The Dead-Ringer can get you caught if you use it carelessly for example you have been recently shot and you used the dead-ringer and you run away however you bump into the enemy making you slightly visible the enemy spots you and then he attacks you. The Dead-ringer cannot be replenished using the ammo box when you are invisible.

Why is this loadout so useful?

You can disguise as an enemy and set off at the enemies' base but be sure to use the dead-ringer cautiously as anyone can suspect you if you do a reckless move. When you are invisible and the enemy looks vulnerable, you can strike but you need to disguise as a different enemy due to the fact that the enemy will realise that you didn't die. When you are disguised and there is an enemy nearby you can wield your amassador and headshot him but beware because the amassador has 20% slower firing speed. Since you have the Dead Ringer and the Spy-Cicle you can get away from any class in Team Fortress 2 so that's the Perfect Trickery Loadout.

Suggestions
If you feel like the loadout looks a bit dull, make it interesting for example instead of an unique Ambassador you could add a Strange festive Ambassador or something similiar to that. You could even add Specialized Killstreak and Professional Killstreak Effects to the weapon but you need the right ones though

This weapon has been classified as an underrated weapon simply because you can't use the Diguise kit but the 'Your Eternal Reward' has a lot of things in store for you guys

Pros:
Silent Killer: When you backstab someone, you need to be careful because the screams of the victim can attract the enemy but silent kills are deadly and it prevents any sound from the victim when they scream.

Rapid Diguise: When you successfully backstabbed someone, you immediately turn into the victim that you killed this useful because for example if you have already been disguised and you backstab the engineer.You wouldn't die because you have lost your diguise,The rapid diguise will diguise into the engineer within seconds and the sentry wouldn't know what hit them.

Cons:
No Diguise Kit: The kit is important because it saves us the trouble trying to backstab the enemy while they are at their base.

Solution:
To prevent being spotted you can:-
Go to the enemies' base and they will attack you turn the dead ringer and look for a chance to backstab an enemy.

Cloak yourself before you arrive at the enemies' base and hide in their base once you get there then look for a chance to backstab an enemy.

The Diguise Kit could be seen as a kit that only lets you disguise as the enemy to infiltrate the enemies's base but you can diguise as your allies as well but to disguise as your allies effectively
you need to use your logic.

How to use the full extent of the Diguise Kit
If you don't want to use the common way - diguise as the enemy and hope that they don't kill you - then choose my way. So the match has begun and you left your spawn area you firstly disguise as your ally.
*Make sure you are not following the person that you have disguised as*
And you proceed on until you get at the enemies' home grounds or you have been encountered by an enemy,if so you shouldn't attack them let them attack you. Once they started to attack you, use the dead ringer to fake your death then you hide and uncloak yourself then disguise as the enemy however make it look like the you left the Spawn Area then you start messing the enemies' base but if you met a single enemy you cloak yourself then disguise as a different enemy and backstab him.
Disguising as one of your teammates is the best way to trick someone however not many people do it because:-
1. They don't even know it is possible
2. They don't know how they would apply it into the game
3. They think it is the same but disguised as your ally
However, the only time you should disguise as the enemy if you have infiltrated the enemies' base but to remember to hide.

The Cloak and Dagger is my second favourite PDA for the spy in the game, Genunine QuackenBirdt is my most favourite. This PDA could be useful in so many situations.

Pros:
You are able to move around while you are invisible but if you move for too long you will lose the power to cloak. This is good to inflitrate the enemies' base without getting and any hassal, you can watch the over the enemies base to see who is vulverable or not without getting caught and you could also give intel about their base.

Cons:
You can't collect ammo box to replenish your cloak meter while you are invisible, this is huge disadvantage because uncloaking yourself will put you are big risk since anyone can be anywhere.

Loadout for the Cloak and Dagger

DiamondBack
Big Earner
Cloak and Dagger
Anything other then the Red Tape Recorder

The DiamondBack allows guarenteed crits if you sap a Engineer's building so you need to destroy it but the Red Tape Recorder slowly disables it and it doesn't destroy meaning that you won't get the crits you need. You get crits and shoot any enemy then run away and cloak yourself - go to a place or an area where anyone hardly goes- then you get ready you disguise as the enemy and wait. If the enemy that comes by is the enemy you have been disguised as change quickly or wait for another. Then you uncloak yourself and backstab the enemy and use the speed that you have been given to proceed forward or to hide again however if it fails and the enemy turns
around, cloak yourself and wait again.

Trickstabs are stabs that are done with style and tricks, trickstabs fool the enemy and it catches the enemy off guard there are:-

Sap-and-stab:
Sap an Engineer's unattended building as soon as you have done that you need to hide, then stab him when he returns to remove the Sapper.

Overhead stab or Stairstab:
Stand at the top of a set of stairs/ramp facing down at an enemy approaching you. Run forward and crouch-jump, releasing forward while turning in mid-air to stab them in the back. This technique can be difficult to master, but it is also difficult to protect against, as the enemy has to turn almost completely around to avoid it.

Quickstab:
While an enemy is running towards you, let them run past you before spinning and stabbing their back. This is trickstab can be done with Scouts or a disguised enemy.

The Corner Stab:
This is an professional Spy technique. The technique involve luring an enemy to a corner, then immediately backing out and stabbing the enemy as he comes after you

The Leap Stab (or Drop Stab or Eagle Stab):
This trickstab focuses on striking enemies from a significant height (usually from ground above the opponent - bridges for example) and is best used with either the Cloak and Dagger or Dead Ringer. Cloak on a bridge (or hide if you're using Dead Ringer) and as the enemy passes beneath the spot, jump after them and stab them in the back. Doing the stab itself is easier with the Cloak and Dagger, but getting away is easier with the Dead Ringer . The enemy will have no idea where you came from, as they usually do not check the skies.

The Strafe-and-Snap:
This is a highly advanced backstab technique. To perform this trickstab, run at the enemy, but just before you reach them, release the forward key, then as fast as you can, snap your view towards the player at the same time as attacking repeatedly the opposite direction while clicking. This stab takes a lot of practice to master, but once you get it down, it can prove extremely useful for tight situations.

Advice:-
If you ever want to pratice your trickstabs go on a map with a friend that is online and ask for some help or go on servers and type this on the map bar:-
tr_walkway
This map has bots continously walking , you can perform market garderning kills and trickstabs and it doesn't require a friend so this is the best option.