19 transmog appearances in Siege of Orgrimmar.
Bolt-Burster GripsCloth Hands
Bracers of Purified SpiritLeather Wrist
Bracers of Sordid SleepPlate Wrist
Bubble-Burst BracersPlate Wrist
Chestplate of Congealed CorrosionPlate Chest
Cloak of Misguided PowerCloth Back
Corruption-Rotted GauntletsPlate Hands
Encapsulated Essence of ImmerseusOne-Hand
Greatbelt of Living WatersPlate Waist
Hood of Blackened TearsLeather Head
Hood of Swirling SensesCloth Head
Ichor-Dripping ShoulderpadsCloth Shoulder
Pauldrons of Violent EruptionPlate Shoulder
Puddle PunishersMail Feet
Salt Water SandalsLeather Feet
Soul-Soaked GlovesMail Hands
Treads of Unchained HatePlate Feet
Trident of Corrupted WatersTwo-Hand
Waterwalker GreatbootsPlate FeetSign in with Battle.net to see which of these appearances and collectibles you already have, and which of your characters can still loot Immerseus this reset.