Thread:PeppermintSoda/@comment-27311904-20190101181218/@comment-5945430-20190102030900

Basically you have to let at 10 units leave the map to gain mana, but it's kinda tricky in this level since Jelly Walkers keep spawning near the end of the stage.

I don't have three stars in that stage either :( Probably with higher grade units (probably all L-grade I suppose) it might be achievable. Don't worry; you can always come back to it later; focus on completing other stages first before getting all three stars on this level.