Feral half fey Human.
Re-fluffed feral half fey to being the witcher template.
Feral for fast healing and physical stat boosts ect. Half fey for mind control stuff.
Factotum 1(able learner feat) for skills
Fighter 2(for feats)
Warlock 1 for eldritch blast (fire power)
and warblade for the rest so it is a semi viable build.
Take some skills in craft(alchemy) and craft(trapmaking).