By Caroline Gaspich As spin-off Deal or No Deal: Island launched its season premiere on Monday night, fans were devastated as contestant Brantzen Wong was eliminated the first week after heroically helping his fellow player. Monday evening, the brand-new Peacock series kicked off as 13 contestants jetted off to the banker’s exclusive private island to compete in an array of taxing mental and physical challenges. During the first episode, fans were thoroughly entertained as the contestants already betrayed and manipulated one another as they frantically searched for the hidden briefcases buried…