Immortal item

The rarest cosmetic rarity, with custom effects; the most valuable tradable class in Dota 2.

Immortals are cosmetics with unique animations or effects, released in treasures and events and tradable between players. Old treasure Immortals that cannot drop any more are the collector's items — the Dragonclaw Hook being the famous example. Listings name the item and, for older ones, the treasure it came from.