Random color effects
Random color effects are unusual effects that come in various colors. The only exception is Affliction of Vermin, which has no color variation. Couriers with these effects are usually found in "normal" chests containing hero-specific items.
|Affliction of Vermin||Dark smoke surrounds courier. Little bats and centipedes appear around courier.|
|Burning Animus||Flames and light beams appear around courier's eyes.|
|Ethereal Flame||Flames appear under courier.|
|Felicity's Blessing||Courier is engulfed in a green haze. Grass grows beneath courier. Leaves trail.|
|Luminous Gaze||Courier's eyes shine brightly.|
|Piercing Beams||Beams of light shoot out from courier's eyes.|
|Resonant Energy||Pale ripples pulse around courier.|
|Searing Essence||Light emanates from courier's eyes.|
Random color effects are found in three different colors types. All unusual couriers being unboxed today have either Paintable or Unpaintable color types, thus limiting them to a handful of colors. An extremely small number of limited couriers have a Legacy (random) color.
- Paintable color types are colors that can be changed with Unusual Paint.
- Unusual Paint was originally given out to to fix a problem with some unusual couriers not displaying their effects properly.
- Valve has since stopped distributing Unusual Paints, making them extremely rare and available only via trade, usually at very high costs.
- Affliction of Vermin and Felicity's Blessing cannot be altered with Unusual Paint.
- Unpaintable color types cannot be changed with Unusual Paint, or any other means.
- Light Blue, Magenta, and Persian are no longer available. Existing couriers with those colors are nearly as rare as couriers with Legacy colors.
- Legacy color types are any color that is not listed as Paintable or Unpaintable. They originated during a time when newly unboxed couriers were assigned a random effect color on the RGB spectrum, thus making their color nearly unique. This feature was removed after concerns that randomly chosen colors were sometimes visually unappealing.
- Existing couriers with Legacy colors are extremely rare.
- Legacy effects can come in any color.
- Because of their unique color, couriers with Legacy effects are very, very valuable.
 Color type table
|Name||RGB Value||Name||RGB Value|
|Light Green||183,207,51||Light Blue||50,166,207|
 Limited effects
Couriers with these unusual effects can only be found in specially designated Treasure Chests, many of which are promotional or made for events.
Click on names to view details and larger galleries.
|Sunfire||Chest #09 - Sithil's Summer Stash (?)||A bright sunbeam shines down on courier.||Summer event 2012|
|Diretide Corruption||Chest #17 - Ghastly Treasure of Diretide||Cobwebs appear on courier. Little spiders emerge from underneath. Small wisps of light follow courier. Leaves trail.||Diretide 2012|
|Frostivus Frost||Chest #21 - Frosty Treasure of Frostivus||Frost appears on courier. Wind and accumulating snow effects when idle.||Frostivus 2012|
|Trail of the Lotus Blossom||Chest #26 - Treasure of the Forbidden Lotus||Pink lotus petals fall under courier. Leaves trail.||-|
|Crystal Rift||Chest #27 - Treasure of Crystalline Chaos||Dark crystal shards materialize around courier. Leaves small trail.||-|
|Cursed Essence||Chest #28 - Treasure of the Cursed Wood||Ghostly roots grow on courier. Black specks fall from the courier.||-|
|Divine Essence||Chest #30 - Treasure of the Shaper Divine||Faint blue glow around courier. Balls of starlight float upward. Leaves trail.||-|
|Trail of the Amanita||Chest #31 - Treasure of the Malignant Amanita||Grey smoke surrounds courier. Various mushrooms grow around courier. Leaves trail.||-|
|Trail of Burning Doom||Chest #33 - Quirt's Summer Stash||Flaming lava appears around the bottom of courier. Leaves trail.||Summer event 2013|
|Rubiline Sheen||Chest #35 - Treasure of Rubiline Sheen|
|Emerald Ectoplasm||Chest #36 - Emerald Polycount Collection|
 Unique effects
Some couriers have their own unique effects, although not all have Unusual quality.
These unusual couriers have effects unique to themselves. They are usually promotional or limited editions.
Upgraded Greevils have their own unique effects, depending on the essences used.
These couriers are not unusual quality, but still have particle effects.
|Star Ladder Grillhound||SLTV StarSeries Season Five ticket||Flames burn from courier's jaws.||Effect intensity increases with games watched|
|Wynchell the Wyrmeleon||Premier League Season Four ticket||Light shines from courier's eyes. Ghostly blue glow around courier.||Effect intensity increases with games watched|
|Inky the Hexapus||G-1 Champions League Season 5 ticket||Blue light shines from shell. Bubble, shells and starfish fall from courier.||Effect intensity increases with games watched|
Any courier listed as Unusual can be outfitted with an Prismatic gem for color and a any Ethereal gem for effect. y
 See also
- List of Unusual Couriers
- Treasure Chests
- Strange Items
- Vintage Items
- Genuine Items
- Self-Made Items