chal·ice 
/ˈtʃæləs/ noun
plural chal·ic·es /ˈtʃæləs/ noun [count] : a special cup for holding wine ; especially : the cup used in the Christian ceremony of Communion
poisoned chalice
chiefly Brit : something that seems attractive at first but becomes unpleasant
▪ Working as store manager was a poisoned chalice as it became more and more difficult to be the boss of her friends.
▪ Working as store manager was a poisoned chalice as it became more and more difficult to be the boss of her friends.
