First of all, if this is for WiFi and not Shoddy/Pokemon Online, you'll need to learn how to IV breed (unless you already know in which case you just have to put it into practice). With IV breeding you can get your Flygon's stats up to 302 HP / 328 Atk / 196 Def & SDef / 176 SAtk / 299 Speed with an Adamant nature and a simple 252 Atk / 252 Spd / 4 HP spread. Shoddy and PO will do this automatically for you, so it's good to use that to test teams if indeed this is for WiFi.
As for the team itself, I think the best advice I can give you is to test it on one of the simulators that I just mentioned. There you can test your team, which is automatically at level 100 with perfect IVs and you don't even have to EV train. There are definitely some weaknesses, but it's more helpful for you to learn yourself.
But I won't be useless. The movesets could use some work, so I'll go through them now.
Typhlosion
Eruption is a shaky choice because Stealth Rock is extremely common. This will take 1/4 of Typhlosion's HP upon switching in, and Eruption will be weakened. Since you don't have a Rapid Spinner (they're used to get rid of Stealth Rock), it will hurt. Rollout is extremely weak, so Hidden Power Rock is a very good substitute. Swift is also rather weak, so using Focus Blast is an option for some better type coverage. Typhlosion's ability can be abused with Substitute (which will lower its HP to activate Blaze), but it's risky with Tyranitar on your team.
Flygon
Flygon's two best sets are Choice Band and Choice Scarf versions. Both of them use Earthquake and Outrage (you need Platinum to get Outrage, otherwise Dragon Claw is a decent alternative). Fire Blast is usually the Fire move. The move that will need to be replaced is Roost since it's poor for a choice set. U-turn is almost always the move of choice in the fourth slot. It allows you to scout your opponent, which gives you the chance to figure out how you want to beat your opponent, what Pokemon need to be sacrificed, etc. Flygon is a solid choice.
Heracross
Like Flygon, this runs a choice set most of the time, but the SD set is probably the best in OU. I have used it to great success (especially behind dual screens). The set is this:
Heracross @ Life Orb
Trait: Guts
EVs: 4 HP / 252 Atk / 252 Spd
Jolly Nature (+Spd, -SAtk)
- Swords Dance
- Close Combat
- Megahorn
- Stone Edge
This has the power of a SD Lucario but with more stallbreaking potential. It does have issues with faster Pokemon though, which is why it needs dual screens (Reflect and Light Screen support Pokemon).
The choice sets are still fine though, Close Combat and Megahorn stay along with Stone Edge and Night Slash. Pursuit is decent on the Choice Bander but it doesn't hit as hard as Pursuit from Scizor or Tyranitar, so be mindful of that.
Tyranitar
This can run too much to list so I think that
its Smogon page will be more useful.
But if I may make a personal recommendation, the Choice Bander and the lure sets have been the best in my experiences. For someone who is new like you, using one of those is a great way to help you hone your prediction skills. Both sets require skill to use, and you can get a lot out of practicing with them. It's much more prediction-reliant than Flygon and Heracross, even though they too are locking themselves into one move.
Floatzel
I wish I could be more helpful here but I've never seen a Floatzel used in a competitive battle. Again, I'll just link to
its Smogon page. but before you check that out I can honestly tell you that there are better Pokemon to use. The best physical Water-type attacker is Gyarados, which is best when it's running its standard Dragon Dance set:
Gyarados @ Leftovers / Life Orb
Trait: Intimidate
EVs: 4 HP / 252 Atk / 252 Spd
Adamant Nature (+Atk, -SAtk)
- Dragon Dance
- Waterfall
- Stone Edge
- Earthquake / Ice Fang
This can run Jolly nature to outspeed Jolteon after a Dragon Dance. I usually like Leftovers over Life Orb since Gyarados is bulky and has good defensive typing, and Life Orb wears it down very quickly. Life Orb does give it a lot more power though. But again, Tyranitar's Sand Stream is an issue if you use Life Orb. I have been hinting at getting rid of it since it hurts some of your teammates, so if you do decide to go that route you can replace if with a strong physical attacker like Machamp or Dragonite. If you choose to do that, I can give you some good movesets. If not, that's fine too. Tyranitar is a great Pokemon.
Electivire
Electivire is actually made fun of a lot for having great type coverage but poor power. Electivire can't break through common walls like Swampert, Bronzong, and Hippowdon. Electivire can make up for this to some extent with its mixed set:
Electivire @ Expert Belt
Trait: Motor Drive
EVs: 40 Atk / 216 Spd / 252 SAtk
Mild Nature (+SAtk, -Def)
- Thunderbolt
- Flamethrower
- Hidden Power [Grass]
- Cross Chop
This lets it break walls after they have been weakened some. HP Grass covers Swampert and Hippowdon. HP Ice can be used if you're terrified of Gliscor. It is bashed a lot, but that doesn't mean that it's useless. This is another set that helps with prediction since you'll want to switch it in on Electric-type attacks to get it a Speed boost from Motor Drive.
You'll probably find out the the current line-up you have lacks synergy, or a coherent focus that all six team members work towards. However, you can soon pick this up and edit this team once you battle with it some. These movesets are just to help you get started, and of course, you can always post here for more help with this team or even with a new team if you decide to go that route.
