Blizzard has been accused of trying to appease China after punishing tournament players voicing support for the Hong Kong protests.
Chambers tweeted to say he was "happy to announce" the ban, in an apparent mockery of Blizzard's actions.
Blizzard is embroiled in a fresh censorship controversy after banning three more 'Hearthstone' players for supporting the Hong Kong protests during a tournament.
Though Blizzard initially took no action, Chambers, Dark and TJammer were scheduled to play again in the Collegiate tournament, forcing Blizzard to play its hand.
It promptly informed the three players of its decision to ban them via email on Tuesday, player Casey Chambers confirmed.
The firm banned Blitzchung for a year and confiscating his prize money, but softened its stance after considerable public outrage.
Up to 30 employees at Blizzard's parent company, Activision Blizzard, reportedly walked out of work in protest. »