The first notable armour you'll come across in WoW Classic are the Tier 0 sets, which are better known as T0. The Warrior's T0 set is called the Battlegear of Valor and is designed with the Protection spec in mind.
Warrior
Battlegear of Valor
Set bonus
- 2 pieces: +200 to Armor.
- 4 pieces: +40 to Attack Power.
- 6 pieces: Gives you a chance to restore 88-132 health on melee attacks.
- 8 pieces: +8 to All Resistances.