Gible OHKO strat - 7-star Charizard

=====TEAM=====
Gible @ Focus Sash
Ability: Sand Veil
Adamant Nature
- Outrage
- Swords Dance

Needs Hyper trained in Atk only

Alcremie @ Covert Cloak
Ability: Sweet Veil
EVs: 252 HP / 252 SpD
Calm Nature
- Decorate
- Helping Hand

Oranguru @ Choice Band
Ability: Symbiosis
EVs: 252 HP / 252 SpD
Careful Nature
- Trick Room

Snorlax @ Zoom Lens
Ability: Thick Fat
Tera Type: Normal
EVs: 252 HP / 252 SpD
Careful Nature
- Screech

=====STRAT=====
Turn 1:
Oranguru: Attack cheer
Snorlax: Screech on Charizard
Alcremie: Decorate on Gible
Gible: Swords Dance (if not attacked by Charizard turn 1)

Turn 2:
Oranguru: Trick Room
Snorlax: Screech on Charizard
Alcremie: Helping Hand on Gible
Gible: waits for everything to go off, Outrage

IF Charizard Overheats Gible turn 0, Alcremie needs to do a second Decorate.

=====CALCS=====
+4 0+ Atk Choice Band Gible Helping Hand Atk Cheer Outrage vs. -4 0 HP / 0 Def Tera Dragon Charizard: 7854-9240 (105.7 - 124.4% of 25x hp boss) -- guaranteed OHKO