|Look at how well rounded out this guy is!
To start, he has an impressive melee attack strength of 23
at Demi-God level thanks to his Might skill. But he is
actually an archer, which means he can attack magic-immune
creatures from a distance (like Sky Drakes). So even if
Marcus runs out of arrows, he can still whoop some ass with
his fists! Moving on, you will notice that Marcus also has
some casting ability and two handy spells. Finally, he
has Mountain & Forest Walk and Scouting II so he can move
blazingly fast and see a fair distance away.
What doesn't this guy have? Well, he does not
have an above-average To Hit ratio. Archers must have a
high To Hit factor if they are to be of any value. You
could give Marucs a lot of magical items that include +To Hit bonuses, but those take a lot of time and mana to create.
Personally, I would either get Shuri early in the game and stick
with her, or wait until I could get Allora the Elven Archer. But if you get the chance, give Marcus a shot.