Astral Flow

Astral Flow is the Summoner's Two-hour ability in Final Fantasy XI. When used, the player is allowed three minutes to use an Avatar's "Astral Flow Blood Pact". These are very powerful offensive Blood Pacts that can deal a great deal of damage, and affect enemies within an Area of Effect. In addition, the summoner's Perpetuation Cost is reduced to zero, and elemental spirits will have greatly increased casting speed. Astral Flow also grants the Summoner the ability to summon Alexander and Odin if they have forged pacts with them. Alexander and Odin may only be summoned while the Summoner has the effect of Astral Flow.

The amount of MP required to cast the AFBP depends on the Summoner's level (specifically, twice the Summoner's current level). If the Summoner does not have the required amount of MP, the avatar the AFBP cannot be used. No matter how much MP the Summoner has, it will be reduced to 0 upon a successful casting of an AFBP. With the proper items and/or equipment, a Summoner may use up to three AFBPs per Astral Flow use, making this ability useful in many special battles and Burning Circles.