Armed with sword of broken light

Yes, that's Advantage. Disadvantage is rolling twice and using the lower roll. Are you rolling to attack and telling it you don't want to fight??

Ouch. Take 6 damage.

Ah, ok I see. I'll just call that a general Charisma check. Also, I forgot that it's strike deals 1 point of mana burn, so lose 1 mana.

Oh it looks like we need to update your character sheet. You get spellcasting at level 2 (caster level 1) meaning you have mana. So with a Charisma of 16 and proficiency bonus of 2 and access to only level 1 spells, you have 19 mana. Well, 18 now with the mana burn.

As this crystal sets in your palm, you feel the mana inside of it. It's the crystallized mana essence you were sent to find!

That's alright. Hope you had fun.

Are you going back to Tranquillen or doing something else?

Oops! Where did the time go?

Nature is capable of healing itself, but the land has shown no signs of progress in the years since the Third War. The battle against the remaining Scourge is at a stalemate. This may have something to do with the lack of healing, and there are those who are attempting to remedy this. Perhaps Magister Darenis, who sent you on this errand, will know more than you.

It's quite alright.