The party must try stay alive until Beatrix uses an unblockable finishing move that knocks everyone down to 1 HP; either Stock Break or Climhazzard. She uses this when her HP hits 0, or after getting ten turns. She will use powerful attacks like Shock to deal massive damage to a single party member, usually KOing them. If the party is defeated before Beatrix uses her finishing attack, it will be a Game Over.
Beatrix has many good items to steal, although it is difficult to get all the items before she finishes the battle. The player characters can enter Trance after Beatrix uses her Climhazzard ability, effectively wasting it.
If the player is not concerned about stealing her items, and Quina is in the party (optional for the first and second battles, impossible for the third), they can KO Quina before the battle, save, use a Phoenix Down on him/her and reset until the Phoenix Down restores exactly 1 of Quina's HP, and then have Quina open the battle with Limit Glove, which will defeat Beatrix and force her to use Stock Break. In the second battle, having Quina cast Auto-Life on him/herself can emulate this effect.
|"Sword of Doubt" in Final Fantasy IX|
|Trouble with the audio sample?|
The battle theme in the first two battles against Beatrix is "Sword of Doubt" (迷いの剣, Mayoi no Tsurugi?).