The Red Dragon uses Fire-elemental spells, casting Fira and Fireball for much of the battle. When its HP drops to 10,240, the Red Dragon casts Flare and Firaga. It has an equal chance of using Southern Cross, Flare Star, or Level 4 Flare on regular intervals, the latter of which can be avoided at the correct levels. If the player attempts to use Reflect, the Red Dragon will use Eraser to remove it from the entire party.
Blizzaga and Flare spells are effective against it, as is having ShadowthrowTridents. Casting a Poison-related spell early in the fight is also a viable option; it will eventually kill the Dragon even if the party is forced into recovery-based tactics.
Red Dragon uses its life force to power itself up, and cannot be harmed by the player's attacks. Instead, the Red Dragon dies if the party survives long enough for its life force to be completely drained. The dragon will constantly use powerful spells, such as Flare, Flare Star, and Meltdown, and its physical attack inflicts high damage and can be used several times in a row. It uses a new special attack, called Red Fang, which inflicts Death. Before it dies, it casts Ultima followed by Flare in a final attack.
Shell, Protect, Reflect, and Celes'sRunic are vital, as is regular healing with Curaga. If a party member has Flame Shield equipped, the fire-based damage will become healing power. Casting Reraise on all party members is a good idea. It is also possible to use Quick and wait until the Red Dragon's timer is up.