Cherrim @ Heat Rock
Flower Gift
Jolly
252 HP/ 4 Def/ 252 Spd
-Sunny Day
-Seed Bomb
-Protect
-Morning Sun
Cherrim is my sun setter. The idea is to get up sun and survive as long as possible to help Char-X and others. Morning Sun is the best recovery option available in sun. Seed Bomb is to not be taunt bait and is a good STAB move. Cherrim also gets the boost in attack from his ability Flower GIft, so he works best as a physical attaacker. Protect is to stall and survive as long as possible to keep Flower GIft going. I chose an EV spread with lots of speed instead of investing in defesive bulk because I prefer the extra speed.
Charizard-X
Tough Claws
Jolly
252 Atk/ 252 Spd/ 4 Sp. Def
-Rock Slide
-Flare Blitz/Fire Fang
-Dragon Claw
-Roost/Protect
My main attacking option. Cherrims Flower Gift will take care of his pretty bad Sp. Def, and of course it will raise his attack as well. Rock Slide is for coverage and a chance to flinch. Flare Blitz is suicide but the only other option is Fire Fang which is even worse. Dragon Claw is his other STAB. Roost/Protect is how I keep my charizard alive. He also provides a surprise factor. Seeing the Cherrim and the rest of my team in the preview leads people to believe I'm running sun so they naturally expect Charizard-Y.
Rotom-W @ Choice Specs
Levitate
Modest
4 HP/ 252 Sp. Atk/ 252 Spd
-Trick
-Thunderbolt
-Hidden Power Fire
-Hydro Pump
Right away my team is Talonflame weak. Rotom is a perfect counter and he pairs well with my two leading options. Trick is to cripple things like Meowstic-M or other support pokemon. Thunderbolt and Hydro Pump are STAB. Hidden Power Fire in the sun does good damage against steels and grass types.
Gliscor @ Toxic Orb
Poison Heal
Impish
-Earthquake
-Ice Fang
-Rock Slide
-Protect
Another Talonflame counter. I live in constant fear of being wrecked by Talonflame because it has happened so often to me before. Rock Slide is for coverage. Earthquake is STAB and is a spread move. Ice Fang lets me hit dragons such as garchomp and protect is to stall for recovery.
Chansey @ Eviolite
Natural Cure
Bold
252 HP/ 252 Def/ 4 Sp. Def
-Seismic Toss
-Soft Boiled
-Bulldoze
-Helping Hand
Chansey is another support pokemon. Seismic Toss is her best way to damage things taking about a third or a fourth of health on average. Soft Boiled is to keep her eggs fresh. Bulldoze is just for speed control, and Helping Hand lets my pokemon hit harder. She can also stall out Talonflame with Softboiled.
Trevenant @ Sitrus Berry
Harvest
Impish
252 HP/ 4 Atk/ 252 Def
-Phantom Force
-Wood Hammer
-Will-o-Wisp
-Protect/Growth
And I also have a fear of Mega-Khan. Will-o-Wisp cripples it, but burn doesnt really hurt Mega-Khan. Aside from SuckerPunch Khan can't really touch him so I'll have to predict around it. Growth is to set up in the sun and get +2, along with a flower gift boost maybe. Wood Hammer is STAB. Phantom Force is STAB and hits through protect which is common in VGC.
Some other options I've considered are Custap Berry +Explosion Gigalith, Chlorophyll Sawsbuck or Chlorophyll Shifty, Porygon2, Cloyster and Mega Houndoom with Solar Power
Any suggestions would be helpful, and If you believe one of these ^ other pokemon would be a better fit let me know. Thanks in advance <3