I let her the Trickery Domain, for lore reasons, although I don't like stealth. Trickery Domain is ok, most good Cleric spells are available. Polymorph saved me in one tough fight. After a certain moment, when Shadowheart changed, I respecced her to Thunder, as Light and Life do not seem to fit her character (debatable). Thunder is much better than Trickery for my style of play, even without the use of the insane results of applying wet.