Fire Emblem Awakening [SPOILERS INSIDE]

YO, YOU WANT ME TO BEAT THE GAME WITHOUT DLC? THAT'S EZ BRO, SO EZ, IT'S ACTUALLY HARDER TO USE DLC. BUT LUNATIC+ BRO, NO NO NO. YOU GET PAST CHAPTER 10 I'LL PAY FOR YOUR DLC. THATS HOW CONFIDENT I AM IT'S IMPOSSIBLE

How would you prove someone did or didn't use DLC though? Because I bet it's doable without DLC