Balanced Hackmons

xXG190Xx (Giratina) @ Mental Herb  
Ability: Prankster  
Shiny: Yes  
EVs: 248 HP / 8 Def / 252 SpD  
Calm Nature  
IVs: 0 Atk  
- Taunt  
- Toxic  
- Stealth Rock  
- Destiny Bond  

Rayquaza-Mega @ Leftovers  
Ability: Illusion  
EVs: 252 Atk / 4 SpD / 252 Spe  
Jolly Nature  
- Extreme Speed  
- Swords Dance  
- Dragon Ascent  
- Ice Shard  

Mewtwo-Mega-Y @ Safety Goggles  
Ability: Contrary  
EVs: 252 SpA / 4 SpD / 252 Spe  
Timid Nature  
IVs: 0 Atk  
- Draco Meteor  
- Overheat  
- Topsy-Turvy  
- Trick  

Giratinailban190 (Giratina) @ Spooky Plate  
Ability: Magic Bounce  
EVs: 236 HP / 48 SpA / 224 SpD  
Calm Nature  
IVs: 0 Atk  
- Toxic Spikes  
- Defog  
- Judgment  
- Milk Drink  

YouButStronger (Chansey) @ Leftovers  
Ability: Imposter  
IVs: 0 Atk  
- Wish  
- Protect  
- Toxic  
- Night Shade  

Genesect @ Leftovers  
Ability: Flash Fire  
Shiny: Yes  
EVs: 212 Atk / 20 Def / 24 SpD / 252 Spe  
Jolly Nature  
- Sacred Fire  
- Swords Dance  
- Leech Seed  
- Power Whip