Play gladiator there you have red lotus (sword ws) and spells like fire, ice, wind, cure etc... wait for summoner and then you can equip poison, slow, paralyze, too.

and there you go with "redmage". the problem is, that a redmage makes no real sense because of the current class system. A gladiator could almost be a redmage (if he wanted to.. and technically). Because the redmage did not add any active spells, except refresh and -en spells.

but he mainly just mixes up blm and whm spells, and thats about it. so there really is no much need for rdm (if they design him the same like in FFXI)