"The first Green Lantern to be stripped of his title and power ring, Sinestro of Korugar plagued Hal Jordan for years with a Qwardian-designed power ring until he was absorbed into Oa's Main Power Battery by the Guardians. Ironically, Sinestro was reinstated as a Green Lantern by the Guardians and died protecting the battery from power-hungry Jordan!" *Source: Card Back