I thought it made perfect sense in English as Elixir Field. Elixir has many different meaning, like for one example it can mean 'concentrated essence'.

An elixir may be a cure, but a concentrated amount of any cure can and may worsen the consumers health. A MNK who has opened up all their Chakras could just know a way to harness the essence and release it as a burst. A highly concentrated amount could simply result in an explosion instead.