White 2 Good Stuff help for double battles!

[Normal guy]

Thank you if you are on this page and thank you if you plan to help me

So ive been trying to make a goodstuff team since it seemed easy but i want you opinion on it

okeball: Team members:

Garchomp 50 Lv
:vg_dragon:
Nature: Hasty
Item: Draco Plate
Ability: Sand Veil

Moves:
Dragon claw
Dragon rush
Sandstorm
Crunch

Stats:
Hp:184
Attack:166
Defence:99
Sp.Attack:102
Sp.Defence:106
Speed:167

Terrakion 50 Lv
:vg_fighting::vg_rock:
Nature: Jolly
Item: Black Belt
Ability: Justified

Moves:
Giga impact
Retaliate
Rock slide
Sacred sword

Stats:
Hp:156
Attack:152
Defence:108
Sp.Attack:80
Sp.Defence:98
Speed:129

Metagross 50 Lv
:vg_steel::vg_psychic:
Nature: Modest
Item: Red card
Ability: Clear body

Moves:
Hammer arm
Thunder punch
Meteor mash
Bullet punch

Stats:
Hp:160
Attack:142
Defence:146
Sp.Attack:111
Sp.Defence:125
Speed:93

Rotom 50 Lv
:vg_fire::vg_electric:
Nature: Lonely
Item: Flame plate
Ability: Levitate

Moves:
Over heat
Shadow ball
Thunderbolt
Substitute

Stats:
Hp:122
Attack:83
Defence:111
Sp.Attack:120
Sp.Defence:131
Speed:138

Cloyster 50 Lv
:vg_ice::vg_water:
Nature: Impish
Item: NeverMeltIce
Ability: Shell Armor

Moves:
Surf
Icicle spear
Protect
Spikes

Stats:
Hp:128
Attack:111
Defence:226
Sp.Attack:96
Sp.Defence:71
Speed:89

Venusaur 50 Lv
:vg_grass::vg_poison:
Nature: Mild
Item: Meadow plate
Ability: Overgrow

Moves:
Sludge bomb
Solar beam
Synthesis
Frenzy plant PP:8

Stats:
Hp:157
Attack:105
Defence:91
Sp.Attack:119
Sp.Defence:109
Speed:88

Summury: use pure force to KO pokemon

Please give some help to me
Pokemon games I have
Heartgold
White 2
So if there is an easy pokemon I can get from one of these games that would be good tell me