This will be my first reffing so bear with me, please ^^

Mareep (Lv. 5 Female) vs. Avidan (Lv. 5 Male Pidgey)

Mareep's Stats:
HP: 23
Attack: 12
Defense: 12
Speed: 11
Sp. Attack: 14
Sp. Defense: 12

Avidan's Stats:
HP: 22
Attack: 12
Defense: 12
Speed: 13
Sp. Attack: 11
Sp. Defense: 11

Avidan used Slash, causing 10 damage
Mareep used Growl and lowered Avidan's attack by 1

Avidan's HP: 22, attack -1
Mareep's HP: 13

Avidan used Faint Attack, causing 3 damage
Mareep countered with Tackle, causing 3 damage

Avidan's HP: 19, attack -1
Mareep's HP: 10

Avidan used another Slash, dealing 6 damage
Mareep counters with another Tackle, dealing 4 damage

Avidan's HP: 15, attack -1
Mareep's HP: 4

Avidan used Tackle, dealing 4 damage and sending Mareep down

Avidan's HP: 15
Mareep's HP: 0

Avidan wins and grows to Level 6! Good battle to both