Crusader class series

The Swordsman (Venus) class series is a class series available to the Venus Adepts Isaac and Felix, and to a lesser extent, the Mercury Adepts Piers and Mia. Both kinds of Adepts require Mercury and Venus Djinn in order to attain this class, though with an emphasis on Mercury for the Venus Adepts and Venus for the Mercury Adepts.

This class is very similar to the Swordsman (Mars) class series, with which it shares the names of its first three classes (Swordsman, Defender, and Cavalier), as well as the statistical shifts. The two class series differ slightly in Psynergy.

The class series, when at its highest stage of Protector and compared to the other series at their highest respective stages, has high HP, good Attack, and stronger Defense, but below average Agility and PP - the Radiant of the Swordsman (Mars) class series is the same in all of these areas. Both series' luck ratings are high. Noteworthy Psynergy from an endgame perspective includes Revive (contrast this with the Mars variation's Guard/Protect), Plume Edge, Pure Wish, Pure Ply, Cure Poison, Break, and Avoid, and the heaviest area-of-effect Psynergy it has is Nettle (contrast with the Mars variation's Fiery Blast). Average stats from an endgame perspective are 145% (150% if you don't factor in Luck).

Analysis
The Swordsman class series is basically a tougher version of the Water Seer class series, with an even more bare bones offensive Psynergy lineup. The PP pool isn't going to last long under pressure however, and the Wish spells will quickly drain it. It is massively useful in the beginning of TLA, due to getting 4 mercury djinn rather quickly, but gets outclassed when more djinn are found. One advantage the Venus variant has over the Mars variant is the Revive spell. Prior to The Lost Age only the Venus Swordsman could learn Revive with fewer than four Djinn, requiring only a single Djinni.

However, one notable perk of the class is the Cutting Edge spell, which will make quick work of Saturos on the Mercury Lighthouse, and any other Mars aligned monster, although it quickly loses its flair against other monsters, and is quite unimpressive against Mercury aligned monsters.

If you like the Swordsman classes, you'll probably be better off bumping the Adept(s) in question into the Dragoon series as quickly as possible.