Turn back time to the beginning of the battle.Final Fantasy V description
Return (リターン, Ritān?), also known Reset, is a recurring ability in the series.
Using the Return/Reset spell during battle will cause the battle to reset. It is useful during fights when a strategy goes awry, or when the player is trying to steal a rare item. Some enemies are also known to use Return/Reset, such as Omniscient. There are also a number of enemies that have Return/Reset available as part of the set of spells that can be accessed when they are controlled by a Beastmaster, even though they don't use it normally. Additionally, casting Return/Reset in a battle begun with an ambush attack will generally reset it to a condition more favorable to the player.
In battles with a timer, the Return spell is supposed to reset the battle and, thus, also re-start the timer. This is bugged in the North American GBA version, but is fixed in the European release.
Return is a powerful magic used by Chronos and Kairos in the ending of the game's second chapter, in an attempt to repair the crystal.