I think this topic should be asked in ARC section but it's ok if you want us marauders to give you a little suggestion.

In my opinion, if you want crossskills tat aren't messing with enmity. You should looking for Lancer rather than Marauder.
Lancer has some enfeebling skills too.
R08 Moonrise - reduce target's TP generation
R18 Comrade in Arms - place debuff that give PT's TP generation on target.
R28 Heavy Trammel - Reduce movement speed
...

But I never play Archer before, so I don't know which skill work well with ARC.
That why I recommend you better to ask your archer friends.