MYRRHIC

"The team's victory was a myrrhic one, as it came at the cost of their star player's injury."

"The company's decision to lay off staff resulted in a myrrhic success in terms of saving costs but damaging their reputation."

"She celebrated her promotion, but it was a myrrhic achievement since it meant longer working hours and more stress."

"The politician won the election but faced a myrrhic triumph as public trust in him declined rapidly."

"The military's tactical retreat turned out to be a myrrhic maneuver as they lost valuable equipment in the process."