Deals water damage. フラッド [flood] in Japanese.
Final Fantasy IV
Type: Ninjutsu, MP: 20
Casting: 3 seconds
Learn: Edge (event)
Other: 水遁 / すいとん [suiton] in Japanese. Note that this is not the same as the other spells on this page. See Suiton
Final Fantasy XI
Flood
Type: Black Magic, Category: Elemental/Ancient Magic, MP: 368
Learn at: BLM 58
Casting: 18.75 s, recast: 43.75 s
Drop: Bistre-Hearted Malberry, Sapphire Quadav
Other: Deals water damage to an enemy and lowers its resistance against lightning
Flood II
Type: Black Magic, Category: Elemental/Ancient Magic, MP: 287
Learn at: BLM 75 (merit)
Casting: 10 s, recast: 90 s
Merit: Group 2
Other: Each Merit level increases Magic Burst damage by 3 and Magic Accuracy by 5
Airborne Brigade

R+
Type: INT, Element: Water, Growth: Slow, Cost: 16
Attack: 1,070 (lv1), 4,694 (lv80), 6,155 (lv100), ? (lv120), ? (lv140), ? (lv160)
Defense: 1,070 (lv1), 4,404 (lv80), 5,747 (lv100), ? (lv120), ? (lv140), ? (lv160)
Obtain: Friend Recruit campaign (Terra)
R
Type: INT, Element: Water, Growth: Slow, Cost: 12
Attack: 770 (lv1), 2,211 (lv60), ? (lv75), ? (lv90), ? (lv105), ? (lv120)
Defense: 780 (lv1), 2,047 (lv60), ? (lv75), ? (lv90), ? (lv105), ? (lv120)
Obtain: Friend Recruit campaign (Terra)
Category: Ability