XI Hydrohelix is a Black Magic in Final Fantasy XI. It deals Water damage that gradually reduces a target's HP. The damage dealt is greatly affected by the weather. It can be used by Scholars at level 63 and bought from the merchant Layton in The Eldieme Necropolis at the Shadowreign era, costing a total amount of 13,235 gil.


Hydro- comes From Ancient Greek ὑδρο- (hudro-), that derives from ὕδωρ (húdōr) meaning "water".

A helix (pl: helixes or helices) is a type of smooth space curve, i.e. a curve in three-dimensional space. It has the property that the tangent line at any point makes a constant angle with a fixed line called the axis. Helices are important in biology, as the DNA molecule is formed as two intertwined complementary antiparallel helices, and many proteins have alpha helices in what is known as their secondary structures. The word helix comes from the Greek word ἕλιξ, "twisted, curved".

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