Yes, brank is in the scrabble dictionary.
What brank means?
Definition of brank (Entry 2 of 2) 1a : an instrument consisting of an iron frame surrounding the head and a sharp metal bit or gag entering the mouth formerly used to punish scolds. — called also scold's bridle. —usually used in plural. b branks plural, now chiefly Scottish : a bridle or halter for horses or cows.
Is Brang a word?
In some dialects the past tense of “bring” is “brang,” and “brung” is the past participle; but in standard English both are “brought.”