Let's take a look at some of the premier scouts that we currently have in OU. I think if we can gain an insight as to why these scouts are so effective, we can know what qualities we want in our
ultimate scout.
- Scizor
CB Scizor is, among other things, one of the best scouts in the game. Its Steel / Bug typing is almost perfect for scouting - the steel type gives it many, many resistances to come in on, as well as just a singular Fire weakness when paired with Bug, and Bug gives Scizor STAB on possibly the best scouting move - U-turn. Its high attack stat means that it can pose a threat to almost anything with the right move, but its low speed stat will usually prevent a sweep (let's keep Bullet Punch out of the equation here - that's what makes Scizor a sweeper).
- Jolteon
Specs Jolteon in particular can utilize Baton Pass to play as an efficient scout. Because of its high speed and strong Thunderbolt, it can force a lot of opponents to switch out of it, and can therefore give its user the upper hand by granting an advantageous switch. Its defenses aren't the best (65/60/95) but it has passable SpD (isn't OHKOed by ScarfTran Earth Power), and with its Volt Absorb ability, can come in on Thunder Waves and electric attacks with ease. The Thunder Wave immunity is extremely important - many walls use Thunder Wave, and Jolteon can come in on it with impunity and has the power to force the wall out. Its ability as a scout is also affected by its own teammates - if you have a couple of pokemon that draw in Electric attacks in particular (Gyarados), you can switch Jolteon into much more and therefore use it as a scout a lot more too. This Thunder Wave immunity is also one of the main reasons Flygon makes a good scout with U-turn.
- Swampert
Swampert can scout whole teams with Roar. This really comes down to its excellent defensive typing and good defensive stats on both spectrums. By only being weak to Grass, a rather uncommon attacking type, Swampert can ensure that not many things will be able to OHKO him, allowing him to get up a couple of Roars at least. The fact that he can take hard hits from both physical and special attackers means that the number of pokemon he can scout is a lot higher than, say, Donphan. Also, having an immunity to come in on is once again a big asset for Swampert, meaning it can come in without taking any damage at all.
- Gengar
Now this seems like a strange choice, but imo it is actually a very effective scout. It can come in with ease on its immunities to Normal, Fighting and Ground, all of which are very common attacking types. This is important, as Gengar can't really take even neutral hits otherwise. With its great movepool, Gengar can threaten super effective hits on many opponents, and will generally force them out almost every time. Then Gengar can set up a substitute. Sub Gengar is an awesome scout because its speed lets it sub before many of the unpredictable pokemon that need scouting can attack. If Lucario hits you with a Shadow Ball, you know that its some sort of special attacker, whereas if it hits you with Crunch, you can be pretty sure your Gliscor won't have trouble taking it on. So by being able to switch in quite easily, threaten a lot of pokemon out, and being able to sub up before unpredictable pokemon can attack, sub Gengar works as a great scout. I think this shows that you don't actually need to have a move like U-turn or Baton Pass to scout out the opponent's team - Gengar does a good job without any of these.
There are quite a few other ones as well but these were just the ones I could think off of the top of my head. So basically, from this you can see that a good offensive scout likes:
- a way of switching into many opponents, be it with resistances to common attacking types or an immunity.
- to be threatening enough to scare out a lot of common pokemon, allowing you to see much more of the opponent's team.
- being able to switch in repeatedly - SR weak pokemon are generally not good scouts.
- either a scouting move such as U-turn or Baton Pass, or lots of speed to be able to use Substitute (Protect could work too, so speed isn't all that essential, although Protect tends to be risky as the opponent can catch on and just stat up) before unpredictable pokemon can attack, so as to scout out what moves they use.
A defensive scout, such as Swampert, likes:
- to have a nice immunity or lots of resistances to switch in on, much like an offensive scout. This isn't because they are threatened otherwise, but rather simply so as to minimize the damage they have to take in order to scout repeatedly.
- good defensive stats to be able to take both special and physical attacks fairly well (Swampert > Donphan, Hippowdon, etc)
- an uncommon weakness, so that not many things can OHKO them.
- a side point, but the ability to set up Stealth Rock of its own means that it can do some damage while scouting with Roar / Whirlwind.
Anyway, just throwing all that out there. That's what I think is helpful in a good scout, so maybe this could spark some ideas about what we are looking for in our scout creation.