Pot ace is a phrase that can be used to describe someone who excels or is highly skilled in playing poker or other card games. However, if you are looking for synonyms specifically for the individual words "pot" and "ace", there are several options available. For "pot", some synonyms include jackpot, winnings, earnings, and reward. As for "ace", alternatives could be expert, virtuoso, maestro, or genius. These synonyms can be useful when you want to add variety to your writing or speech or when you want to avoid repetitive use of the same words.