Dark Mage class series

The Dark Mage class series is a special class series that is only achievable when the Tomegathericon is equipped to any character. Consequently, this is one of only three class series that can be learned by any Adept. This class also features at least one Psynergy from each element, though the majority are Venus and Mars.

It is important to note that there is also a class in the Medium class series titled Dark Mage, but it is very different from this class series.

The class series, when at its highest stage of Necromage and compared to the other series at their highest respective stages, has excellent PP (tying with the Dark Mage of the Medium class series, the Wizard, and both variations on the Oracle as having the highest PP rating) and very good Agility, but having below average HP (tying with the Angel and both variations on the Oracle and being higher only than the Sorcerer), low Attack (tying with the Angel and Wizard and being higher only than the Sorcerer), and tying with the Sorcerer for having the lowest Defense rating of all final-stage classes. The series has a Luck rating below the standard. Noteworthy Psynergy from an endgame perspective includes Revive and Call Dullahan, and its most useful area-of-effect Psynergies are Dire Inferno and Poison Flow. Average stats from an endgame perspective are 145% (156% if you don't factor in Luck).

Psynergy Setup
There are perennial rumors that Dullahan must first be defeated before the Necromage can use Call Dullahan. This rumor is proven false; Call Dullahan is a Psynergy that becomes available to Necromage Adepts at level 47 or above just like any other typical Psynergy spell. It is even possible to use Call Dullahan on the boss Dullahan in Anemos Sanctum.

Analysis
A nice lineup of Psynergy and a good PP pool to run with (as opposed to the other Item Dependent classes which have PP pools that leave something to be desired) makes the Dark Mage a good (if somewhat frail) choice. Also, unlike the other Item Dependent classes, the Dark Mage has good multi and single target Psynergy (compare to the Pierrot which is mostly multi-target and the Tamer which is mostly single target).