There are several synonyms for the phrase "final blows" which refer to the last attack in a battle or competition. One such synonym is "fatal strike," which implies that the attack is deadly and cannot be recovered from. Another synonymous phrase is "decisive blow," indicating that the final attack has determined the outcome of the battle. "Finishing move" is also a common term used in video games signifying the last move that leads to victory. Other synonyms include "coup de grâce," meaning the final act to end something, and "kill shot," indicating a lethal final attack. These synonyms emphasize the importance and ultimate conclusion of the last strike in a competitive encounter.