Neitiel (Lv. 11 Male Natu) vs Laila (Lv. 10 Female Larvitar)

Neitiel's Stats:
HP: 36
Attack: 22
Defense: 21
Speed: 27
Special Attack: 27
Special Defense: 21

Laila's Stats:
HP: 36
Attack: 24
Defense: 21
Speed: 19
Special Attack: 20
Special Defense: 21

Neitiel uses Psychic, dealing 22 damage
Laila uses Sandstorm, causing a whirlwind of rocks and dirt to fly around
Neitiel is hit by the Sandstorm

Neitiel: 31 HP
Laila: 14 HP

Sandstorm is in effect

Laila uses Flamethrower, dealing 10 damage
Neitiel uses Psychic and deals 21 damage, which is enough to knock Laila out

Laila: 0 HP
Neitiel: 21 HP

Neitiel wins and grows to Level 12!