Elementals are flat out immune to their associated elemental debuffs, right? Am not sure, but I feel like they would be.

I feel like as long as the mob isn't immune, Troubadour 5/5 will probably allow debuffs like Finale/Dark Thren to land on mobs like Pixies, where they're aren't flat out immune, but have high resistance.

At least, that's what I'm hoping lol, if not, then it's fairly useless :/