Which Fire Emblem game features the 'Divine Pulse' mechanic?

Fire Emblem: Three Houses features the “Divine Pulse” mechanic. It lets the player rewind a battle and undo a limited number of recent actions, such as a missed attack, an unlucky critical hit, or a unit’s defeat.

The power is connected to Sothis, the mysterious girl who appears in Byleth’s dreams and eventually merges with them. Divine Pulse becomes available after an early story event and gains additional uses as the game progresses. Its exact number of charges depends partly on story progression and difficulty settings.

Divine Pulse is not the same as casual mode. Casual mode prevents defeated characters from dying permanently, while Divine Pulse rewinds the battlefield so the player can try an earlier sequence again. It also differs from the Turnwheel in Fire Emblem Echoes: Shadows of Valentia, which introduced a similar rewind concept shortly before Three Houses. The older Fire Emblem Awakening and Fire Emblem Fates do not feature Divine Pulse under that name.