Lessons with mixed skills
These lessons would be great because we would have to figure out the situation when to use different grammatical structures. The 25-lingot exams are something like that, but there should be more exams that get more difficult and cost more lingots. I don't have anything else to spend my lingots on. One day, I'll be the richest person in the Duoling cemetery. I'm a spender, not a saver.