a regular sword of shadows, usable at level 10.

Should I stay with that or make a Lit II THF weapon for my TR?

I already have all the shards from a previous life and I can swap out the needed altars on my guild ship. Also I have all the needed ingredients.

This is for a THF warchanter Bard TR. So which is better for leveling? Which is better at level 20 and beyond? What other THF weapons should I think about?