Garnet is a playable character in Final Fantasy IX known as Dagger. She is primarily a Summoner with a secondary job as a White Mage. She can summon eidolons and cast Wht Mag spells. Dagger is the party's most powerful healer for the beginning portion of the game before Eiko joins the party. She is placed in the back row by default. As a mage-type character, her physical capabilities are poor. She is first called "Garnet" in battle, but after changing her name she is called "Dagger" for the remainder of the game. Garnet appears briefly as a boss, and acts as a party leader when she and Steiner are returning to Alexandria.
Dagger's passive abilities enhance her capabilities as a mage and a healer. They include MP raising abilities, such as Healer, that lets her heal with her physical attacks; Chemist that doubles the potency of healing items; Reflect-Null that lets her spells pierce the Reflect status; Concentrate that boosts the power of spells; Half MP; and Boost, that guarantees the longer summoning of an eidolon, which is more powerful than the short summon.
Dagger is the player's first white mage, but her array comes second to Eiko's who joins later. Dagger can use some status magic and the basic curative and supportive spells. She learns Life, but not Full-Life; Panacea but not Esuna; and Protect, Shell and Reflect, but not Regen, Haste or Might. Her unique spells are Scan, Berserk and Confuse.
Compared to Eiko, Dagger has a wider array of eidolons, but in return, Eiko has more White Magic. Dagger's eidolon pool is more powerful since she can summon both Bahamut and Ark. Dagger can summon all eidolons up to Bahamut since the beginning of the game, but the spells require so much MP her level would need to be substantially higher than it is likely to be so early. Later, when Dagger re-acquires the eidolons she lost, the MP cost for summoning them is divided by four. She knows Shiva, Ifrit, Atomos, Odin, and Bahamut when she first joins.
While Dagger is in Trance, her Summon command becomes Eidolon, and the summoned eidolon reappears randomly after being called, as well as acting as a counter attack. As long as Dagger has some Trance bar remaining, the counter attack can last until the end of the battle, as it won't use MP. When Dagger uses the Eidolon command during Trance, there is a higher chance of getting a full summoning animation, which will inflict more damage. The random summons thereafter, however, always have the short summon animation and thus are weaker. Dagger loses the ability to Trance during the time she is going through emotional turmoil, but recovers after she cuts her hair.
Dagger, stat-wise, is only second to Vivi regarding Magic and MP, while being stronger physically and having more HP. Garnet has one of the best speed stats, coming just after Zidane and Amarant. At level 1 she has 70 HP, 46 MP, 14 Magic Stones, 23 Magic and 17 Vitality.
Dagger uses rods and magical rackets as weapons. Rackets are long-range weapons allowing her to attack from the back row with normal damage, although due to her poor physical stats Dagger's physical attack is weak. She can equip jewels to learn new eidolons, and equips mage-type armor.
Garnet appears as a boss when trapped inside Prison Cage. The player must defeat Prison Cage before her HP drops to zero, but can heal her with Potions to prevent this. As with other player characters, a mirror version of Dagger can also be fought.