Aerodactyl @ Focus Sash  
Ability: Unnerve  
Level: 50  
EVs: 252 Atk / 4 Def / 252 Spe  
Jolly Nature  
IVs: 0 SpA  
- Rock Slide  
- Tailwind  
- Sky Drop  
- Wide Guard

Unown
Move options:
- supportive: Protect, Taunt

Unown
Offensive calcs:
- 252 Atk Aerodactyl Rock Slide vs. 0 HP / 0 Def Mega Charizard-Y: 204-240 (133.3 - 156.8%) -- guaranteed OHKO