Warcraft 3 Unit Counters
Your opponent is training
Peasants.
You could counter with...

Peons

Grunts

Troll Headhunters

Demolishers

Shamans

Witch Doctors

Spirit Walkers

Raiders

Kodo Beasts

Wind Riders

Troll Batriders

Taurens

Wolves

Serpent Wards
About This Tool
This tool only takes two variables into account: armor type and attack type. While unit countering is a more nuanced topic, this tool is aimed at players who are still getting to grips with the basics of attack and armor types. Other factors, such as movement speed, attack range, spells, passives, damage and armor, are also important when considering counters.