Pre-searing blood skills.

I know about Kasha but is there anyone else who gives you some?

The First Skill Trainer you ever meet gives you Vamp Gaze

Other than that - no - Kasha is the bloodnecro trainer.

Oberan the Reviled is the curses trainer.

Munne is the death trainer.

(if you haven't noticed - each profession has a trainer there that is linked to giving you skills for one of that classes attributes).

Not that it matters, but...

I don't believe there is an Earth Magic (or Water?) trainer for elementalists in pre. Just Fire and Air.