for your deck, d.d. crow x2 is more side deck material than main deck, and light and darkness dragon, while it used to be super annoying before, with a heavier focus on monster cards, its not as effective
-1 light and darkness dragon
-2 d.d. crow
+1 totem dragon (always use 2 of these)
+1 strong wind dragon (can become very powerful, and helps bypass spirit reapers)
-1 the dragon's bead (its semi useful, but it cant replace this card)
+1 torrential tribute (what can replace this card ? )
for the extra deck, all you really need is
scrap dragon
red dragon archfiend
stardust dragon
black rose dragon
trishula, dragon of the ice barrier
brionac, dragon of the ice barrier
ally of justice catastor
chimeratech fortress dragon (for silly machine users)
number 17: leviath dragon
number 39: utopia