(4) Set: The casting time on your Regrowth spell is reduced by 0.2 sec.
Gladiator's Kodohide Tunic is one of 5 pieces of Gladiator's Refuge, alongside Gladiator's Kodohide Gloves, Gladiator's Kodohide Helm and Gladiator's Kodohide Legguards and others. Bonuses activate at 4 pieces equipped.
In The Burning Crusade it is item level 123 and requires level 70. In Wrath of the Lich King it is item level 123, requires level 70 and sells to vendors for 1c. In MoP Classic it is item level 123, requires level 70 and sells to vendors for 1c.
Read from the World of Warcraft client build files.
How Gladiator's Kodohide Tunic Compares
Who It Suits
Leather is the armor type Demon Hunter, Druid, Monk and Rogue wear. With Agility or Intellect, Gladiator's Kodohide Tunic suits Assassination, Outlaw and Subtlety Rogue; Brewmaster, Mistweaver and Windwalker Monk; Balance, Feral, Guardian and Restoration Druid; Havoc, Vengeance and Devourer Demon Hunter.
Transmog Sets
Gladiator's Kodohide Tunic is part of the transmog set Gladiator's Dragonhide Armor (Druid only). The other 16 pieces:
Blizzard numbers items as they are created, so the named items next to ID 31379 (31374 to 31384) were usually added in the same batch as Gladiator's Kodohide Tunic: the same quest line, zone, vendor or reward set.