I know I could change a pokemon, but I don't know which one to get rid of. Sorry for the long descriptions(my team is weird). I would like any suggestions.
Mew @ Normal gem
Adamant
Synchronize
-explosion
-stealth rocks
-magic coat
-taunt
EVs: 4 HP 252 attack 252 speed
Taunt and magic coat are there to shut down opposing leads. Stealth rock is pretty obvious and explosion off of max attack and normal gem will cripple anything that's not a ghost. HP evs are there to make it more bulky. I don't know if I need that much speed investment because I would like to invest in Mew's defenses and it seems most leads are either way faster or way slower.
Deoxys attack forme @ Choice specs
modest
Pressure
-Psycho boost
-Shadow ball
-Thunder
-Ice beam
EVs: 252 Special attack 252 speed 4 special defense
This is a modified life orb set. I was goind to use life orb, but it seemed to me that most Deoxys' aren't going to get to sweep anyway with superpower only OHKOing extremekiller Arceus or Dialga with a critical hit. Since I generally use Deoxys as a revenge killer, I thought that I would make it better by going completely special or physical and slapping a choice item on it (not scarf) to OHKO every Uber in the tier. Psycho boost hits normal types that were hit by super power. Latios and non-scarf Palkia are OHKOed by ice beam and psycho boost respectively. All the other moves are for coverage.
Kyogre @ choice specs
Drizzle
modest
-Surf
-Water spout
-Thunder
-Ice beam
Evs: 252 HP 252 special attack 4 special defense
The standard Kyogre for 3 straight generations! I am thinking about replacing the choice specs with a choice scarf, but that would make it much more vulnerable to blissey.
Rayquaza @ choice band
Air lock
adamant
-Outrage
-V-create
-Earthquake
-Extremespeed
Evs: 252 attack 252 speed 4 special defense
This shuts down all weather teams. I was goind to make it a life orb set, but I decided against it for two reasons. First, choice band simply hits harder. Secondly, This team has three choice specs users and needs more physical moves.
White Kyurem @ choice specs
Turboblaze
modest
-Ice beam
-Draco meteor
-Focus Blast
-Earth power
Evs: 252 special attack 252 speed 4 special defense
Another standard set. I used earth power over fusion flare because I realized that I wouldn't hit skarmory that hard with it in the first place and focus blast still OHKOs with stealth rocks.
Zekrom @ choice band
Teravolt
adamant
-Bolt strike
-Outrage
-Dragon claw
-Volt turn
Evs: 252 HP 252 attack 4 speed
Almost a standard set. Dragon claw is used for a lack of earthquake and volt turn is pretty much the only way I'll switch out of zekrom other than fainting.
Strategy: Send out Mew, shut down opposing lead, Stealth rock, explode or save for later. Send out a non-Deoxys pokemon and maul everything. Revenge kill with over powered Deoxys or the Mew I saved.
I know that this team is pretty risky because almost everything is choice locked and the only other one is suicidal. I know almost everything is 90 speed. Since Mew will explode, the only thing faster than that is Deoxys. My hope is that if a scarfed zekrom or something like that comes I will revenge kill it with Deoxys and continue. I also know that I have no priority users other than rayquaza and that half my team is dragon-type, one of which is 4 times weak to ice types.
Again, I would appreciate any suggestions.

Mew @ Normal gem

Adamant
Synchronize
-explosion
-stealth rocks
-magic coat
-taunt
EVs: 4 HP 252 attack 252 speed
Taunt and magic coat are there to shut down opposing leads. Stealth rock is pretty obvious and explosion off of max attack and normal gem will cripple anything that's not a ghost. HP evs are there to make it more bulky. I don't know if I need that much speed investment because I would like to invest in Mew's defenses and it seems most leads are either way faster or way slower.

Deoxys attack forme @ Choice specs

modest
Pressure
-Psycho boost
-Shadow ball
-Thunder
-Ice beam
EVs: 252 Special attack 252 speed 4 special defense
This is a modified life orb set. I was goind to use life orb, but it seemed to me that most Deoxys' aren't going to get to sweep anyway with superpower only OHKOing extremekiller Arceus or Dialga with a critical hit. Since I generally use Deoxys as a revenge killer, I thought that I would make it better by going completely special or physical and slapping a choice item on it (not scarf) to OHKO every Uber in the tier. Psycho boost hits normal types that were hit by super power. Latios and non-scarf Palkia are OHKOed by ice beam and psycho boost respectively. All the other moves are for coverage.

Kyogre @ choice specs

Drizzle
modest
-Surf
-Water spout
-Thunder
-Ice beam
Evs: 252 HP 252 special attack 4 special defense
The standard Kyogre for 3 straight generations! I am thinking about replacing the choice specs with a choice scarf, but that would make it much more vulnerable to blissey.

Rayquaza @ choice band

Air lock
adamant
-Outrage
-V-create
-Earthquake
-Extremespeed
Evs: 252 attack 252 speed 4 special defense
This shuts down all weather teams. I was goind to make it a life orb set, but I decided against it for two reasons. First, choice band simply hits harder. Secondly, This team has three choice specs users and needs more physical moves.

White Kyurem @ choice specs

Turboblaze
modest
-Ice beam
-Draco meteor
-Focus Blast
-Earth power
Evs: 252 special attack 252 speed 4 special defense
Another standard set. I used earth power over fusion flare because I realized that I wouldn't hit skarmory that hard with it in the first place and focus blast still OHKOs with stealth rocks.

Zekrom @ choice band

Teravolt
adamant
-Bolt strike
-Outrage
-Dragon claw
-Volt turn
Evs: 252 HP 252 attack 4 speed
Almost a standard set. Dragon claw is used for a lack of earthquake and volt turn is pretty much the only way I'll switch out of zekrom other than fainting.
Strategy: Send out Mew, shut down opposing lead, Stealth rock, explode or save for later. Send out a non-Deoxys pokemon and maul everything. Revenge kill with over powered Deoxys or the Mew I saved.
I know that this team is pretty risky because almost everything is choice locked and the only other one is suicidal. I know almost everything is 90 speed. Since Mew will explode, the only thing faster than that is Deoxys. My hope is that if a scarfed zekrom or something like that comes I will revenge kill it with Deoxys and continue. I also know that I have no priority users other than rayquaza and that half my team is dragon-type, one of which is 4 times weak to ice types.
Again, I would appreciate any suggestions.