Phase Shift is an event that occurs when some moves hit the opponent. It can either switch the phase from Field Phase to Duel Phase or Duel Phase to Field Phase. Triggering a Phase Shift is the main goal of Field Phase while causing a Phase Shift in Duel Phase is recommended to do when finishing combos. When a Phase Shift occurs, the player who triggered the shift recovers some of their recoverable HP while the player who got hit by the move that caused the shift loses some of their recoverable HP.