After a few nights of fighting, I went back to my old guys. I've been trying things differently and have come up with this so far: changes in blue
Heracross, Guts @ Lum Berry
Jolly, 252 Atk / 252 Spe
Close Combat
Megahorn
Night Slash
Stone Edge
What do you do when you see this guy as a lead, Splash your pants? If anyone tries to put him to sleep, he still goes straight for a kill with Night Slash or Megahorn. Tricking a Choice Scarf will make matters worse because now he'll strike first if you keep your guy in. I stopped playing around with all these annoying leads that put someone to sleep and then die because they're so weak, Heracross gets the kills so I might as well kill first. Status-causing leads don't usually survive after the second round, and the variety of moves help keep Heracross from being pulled out. I save Close Combat for the big guys, or when Heracross is weak anyway. This is my temporary Gyarados and Salamence killer, since a quick Stone Edge does plenty of damage. They don't have many turns until one of us dies.
Tyranitar @ Blackglasses
Jolly, 252 Atk / 252 Spe
Dragon Dance
Earthquake
Stone Edge
Crunch
Second in command, I like to get Sandstream out quickly to cause damage down the line. Focus Sash strategies are ruined, and it helps a few of my guys with their defense. I don't usually use Earthquake with Tyranitar since the stab moves do enough damage after Dragon Dance, especially boosted Crunch. Tyranitar handles Psychics better than Heracross due to his immunity, and resists Fire which is what I switch him into often. This guy has enough defense to Dragon Dance before attacking and while Water and Ground are very common types of attacks, they're easy to predict based on what Pokémon I'm against.
Gengar @ Black Sludge
Timid, 252 SpA / 252 Spe
Shadowball
Hypnosis
Energy Ball
Thunderbolt
Hypnosis lets me worry about an opponent later, and Thunderbolt has gotten a few Gyaradoses if I can switch in properly. Right now Gengar is the least useful and I'm thinking about putting a Flying or Dragon (or both) type here. Gengar used to lead but he became boring and useless, I'd switch in fear of Psychic killing right away.
Blastoise @ Leftovers
Bold, 252 Hp / 146 Def / 116 SpD
Surf
Protect
Rapid Spin
Toxic
Blastoise's defenses were calculated using the Max Harm program, so those should keep him alive the longest. Toxic is usually my first move, followed by Protect. Leftovers cancels out Sandstream, so while Blastoise may remain at full health for a bit, the opponent will take poison damage. Blastoise can survive a lot so I keep stalling and Toxic anything that switches in. Rapid Spin is somewhat useless, but so is Surf. RS had allowed weak Pokémon to come back in for a last kill, so it's worth it once in a while.
Scizor, Technician @ Fire Berry (Occa?)
Adamant, 252 Atk / 126 HP / 104 Def / 24 SpD
U-Turn
Iron Head / Brick Break / Aerial Ace
Roost
Quick Attack / Bullet Punch
All I have to do is learn how to use Scizor, and I think that I have finally. Max attack with calculated defenses per IVs, Scizor had been using Choce Scarf but I think I'll change that. The defenses are needed even more now since he's more likely to get hurt switching in often. My strategy was to U-Turn nearly everyone who gets a kill off me and then put in Blastoise or Metagross, but Iron Head would hurt a lot also. Once I can get Bullet Punch I'll change Iron to something else, Aerial Ace would be to make up for Metagross in Platinum and get Heracross and Machamp. Technician would help boost it to a base powerof 90, which sounds pretty good.
Metagross @ Shuca Berry
Adamant, 152 Hp / 252 Atk / 104 Spe
Meteor Mash
Earthquake
Pursuit
Zen Headbutt / Ice Punch
Zen headbutt is back, and usefor for what this team is missing for now. Until I can Ice Punch, I'll be using Metagross for Heracross and Machamp. So far I've been licky and none of them have had Fire Punch or Earthquake. Pursuit is my favorite but it doesn't get much use. Heracross and Tyranitar get the Psychic Ghost and Dark types, while Metagross is usually my last Pokémon to be sent out. Ice Punch will take over for Dragon and maybe Celebi, Earthquake and Meteor Mash will definitely be kept.
I fele like Tyranitar and Metagross compete for kills, it really depends on how the battle goes but usually one will get one or two kills and the other gets none. Sandstream gives me more of a reason to keep Tyranitar, and a Fire resistance since Heracross and Scizor need help with that. Infernape can get either Tyranitar or Metagross though Zen Headbutt and Earthquake might help.
Main problem (I think) is Infernape, which Blastoise can Surf or Toxic + Protect or switch to Gengar to avoid Fighting moves.
Heracross, Guts @ Lum Berry
Jolly, 252 Atk / 252 Spe
Close Combat
Megahorn
Night Slash
Stone Edge
What do you do when you see this guy as a lead, Splash your pants? If anyone tries to put him to sleep, he still goes straight for a kill with Night Slash or Megahorn. Tricking a Choice Scarf will make matters worse because now he'll strike first if you keep your guy in. I stopped playing around with all these annoying leads that put someone to sleep and then die because they're so weak, Heracross gets the kills so I might as well kill first. Status-causing leads don't usually survive after the second round, and the variety of moves help keep Heracross from being pulled out. I save Close Combat for the big guys, or when Heracross is weak anyway. This is my temporary Gyarados and Salamence killer, since a quick Stone Edge does plenty of damage. They don't have many turns until one of us dies.
Tyranitar @ Blackglasses
Jolly, 252 Atk / 252 Spe
Dragon Dance
Earthquake
Stone Edge
Crunch
Second in command, I like to get Sandstream out quickly to cause damage down the line. Focus Sash strategies are ruined, and it helps a few of my guys with their defense. I don't usually use Earthquake with Tyranitar since the stab moves do enough damage after Dragon Dance, especially boosted Crunch. Tyranitar handles Psychics better than Heracross due to his immunity, and resists Fire which is what I switch him into often. This guy has enough defense to Dragon Dance before attacking and while Water and Ground are very common types of attacks, they're easy to predict based on what Pokémon I'm against.
Gengar @ Black Sludge
Timid, 252 SpA / 252 Spe
Shadowball
Hypnosis
Energy Ball
Thunderbolt
Hypnosis lets me worry about an opponent later, and Thunderbolt has gotten a few Gyaradoses if I can switch in properly. Right now Gengar is the least useful and I'm thinking about putting a Flying or Dragon (or both) type here. Gengar used to lead but he became boring and useless, I'd switch in fear of Psychic killing right away.
Blastoise @ Leftovers
Bold, 252 Hp / 146 Def / 116 SpD
Surf
Protect
Rapid Spin
Toxic
Blastoise's defenses were calculated using the Max Harm program, so those should keep him alive the longest. Toxic is usually my first move, followed by Protect. Leftovers cancels out Sandstream, so while Blastoise may remain at full health for a bit, the opponent will take poison damage. Blastoise can survive a lot so I keep stalling and Toxic anything that switches in. Rapid Spin is somewhat useless, but so is Surf. RS had allowed weak Pokémon to come back in for a last kill, so it's worth it once in a while.
Scizor, Technician @ Fire Berry (Occa?)
Adamant, 252 Atk / 126 HP / 104 Def / 24 SpD
U-Turn
Iron Head / Brick Break / Aerial Ace
Roost
Quick Attack / Bullet Punch
All I have to do is learn how to use Scizor, and I think that I have finally. Max attack with calculated defenses per IVs, Scizor had been using Choce Scarf but I think I'll change that. The defenses are needed even more now since he's more likely to get hurt switching in often. My strategy was to U-Turn nearly everyone who gets a kill off me and then put in Blastoise or Metagross, but Iron Head would hurt a lot also. Once I can get Bullet Punch I'll change Iron to something else, Aerial Ace would be to make up for Metagross in Platinum and get Heracross and Machamp. Technician would help boost it to a base powerof 90, which sounds pretty good.
Metagross @ Shuca Berry
Adamant, 152 Hp / 252 Atk / 104 Spe
Meteor Mash
Earthquake
Pursuit
Zen Headbutt / Ice Punch
Zen headbutt is back, and usefor for what this team is missing for now. Until I can Ice Punch, I'll be using Metagross for Heracross and Machamp. So far I've been licky and none of them have had Fire Punch or Earthquake. Pursuit is my favorite but it doesn't get much use. Heracross and Tyranitar get the Psychic Ghost and Dark types, while Metagross is usually my last Pokémon to be sent out. Ice Punch will take over for Dragon and maybe Celebi, Earthquake and Meteor Mash will definitely be kept.
I fele like Tyranitar and Metagross compete for kills, it really depends on how the battle goes but usually one will get one or two kills and the other gets none. Sandstream gives me more of a reason to keep Tyranitar, and a Fire resistance since Heracross and Scizor need help with that. Infernape can get either Tyranitar or Metagross though Zen Headbutt and Earthquake might help.
Main problem (I think) is Infernape, which Blastoise can Surf or Toxic + Protect or switch to Gengar to avoid Fighting moves.