TerraTyping/Armors

Armor
TerraTyping gives armors types that can be both beneficial in some environments and a hindrance in others. Without any armor equipped the player has a base type of Normal. Having a full set (Armor that does not have a full set does not have a type.) of one armor will grant you the types of the armor that is equipped. Using a Weapon that is of the same type as the equipped armor set will grant the Weapon, STAB (Same Type Attack Boost) and deal additional damage.

Wizard Set
Though not a traditional armor set, these hats and robes confer a set bonus when worn together. These Pieces of armor have no type because they do not have a full set of armor to go with.

The link to the offical terraria wiki page for the robe is here https://terraria.gamepedia.com/Robe

Miscellaneous Armor
A few pieces of armor aren't part of any particular set. These Pieces of armor have no type because they do not have a full set of armor to go with.