I've been working on reformatting this for the format... i was running cyber dragon, but i like tefnuit better cuz its lv 6 so i can xyz with it. https://i.imgur.com/UA1id2x.png

ew!

anyway

-1 caius
-1 light pulsar dragon
-1 treeborn frog
+1 tragogedia

as for the deck itself, I don't know.....so many things have been taken away from chaos decks its not funny, while other things have been hit to make sure that control and anti meta tactics simply wont work; even fire fist, one of the most annoying anti meta decks one can find today, has no place in this format

Kaiza nu! He must keep da treeborn. You don't know how precious it is in this deck! XD But yeah
Before I make any changes/suggestions, was wondering how the deck itself works for you

her i thought chaos was deadish lawls

"Summoner Monk" might be a good addition to the deck. A small deck thinner, but one nonetheless,chaos fodder, and you have access to a level 4 xyz. You could even flip the deck around and focus more on dragons a bit.