More champions vigilance, more blue dragon summoner, and if you're running polymerization then thunder dragon would be a good move for a super easy fusion. Maybe even dump mirror wall and try matter transporter
Because it's not really helping alot and I'd swap totem dragon for kidmoto dragon cuz it can summon any if your dragons and u have alot of non dragons to ruin totem dragons effect.
If you want to focus poly, add fusion gate, but this deck isn't good with poly, add blue dragon summoner +2, at least one more mirage dragon since you have only 1 cv, add econ, RE wyvern, or Vanguard dragon, keeping the deck around 20 cards
Anoymous
Judai