Riot Squad Singed was normally only available via promotional codes. It was first gifted at the Gamescom 2010 and other events that Riot Games attends to, such as PAX and E3. However, the skin has now been replaced with the K-9 Nasus skin.
During some events, Riot Games enabled the skin at the in game store, allowing anyone to purchase it using RP, the last instance of this being 2011's PAX Prime.
Taric is on the bottle of Surfer Singed splash art, complete with surfer shades.
The bottle is labeled "Taric's Tropical Tan".
Mad Scientist Singed is based on the stereotypical mad scientist.
The skin also bears a resemblance to Dr. Mundo's original skin before the game was released.
Augmented Singed is possibly a reference to Bane from the Batman franchise.
The skin's release date is also very close to the premiere of the new Batman movie, The Dark Knight Rises, in which Bane is the main villain.
Singed was Warwick's apprentice in alchemy, until his master was transformed by the incomplete potion he consumed.
Singed invented the toxic weapon used on Master Yi's home village. The remains of the village were so horrific that it remains a festering scar on Ionian history. To this day, no Ionian will ever publicly speak of what occurred.
During an Ionian ambush on Noxian troops, Singed launched a barrage of biochemical terror on both forces. Riven witnessed as around her Ionian and Noxian alike fell victim to an unspeakably gruesome fate.
Singed and Blitzcrank are on unfriendly terms with one another.