Ruling Knowledge & Awareness (9/10)
The only ruling mistake you made was forgetting your own Iron Chain Dragon's effect to mill 3 of my cards when he does damage. I didn't see any other mistakes in all of the duels.
Deck Build (13/15)
Both decks were very good and I haven't much to say about it. The only mistake you yourself discovered was that you need to add Nitro to your Extra deck.
Using Your Deck - Playstyle & Duel Control (9/10)
Your deck usage and play style were very good and you didn't make big strategy mistakes.
Total - 31/35
Congratz you got to the top dorm ^^
31-33 : Top Dorm 2/3