>>527549637
It needs quite a few things
>extension
>actual substantial boss monsters
>more synchro summons on either turn
The problem with the deck is truly that Legatia is the only card that actually does anything in terms of interruption. True Awakening is too minus to work in the regular combo, Phalanx is used in most combos as a GY effect instead of its first interruption effect, and literally everything else doesn't do anything. Even Legatia sucks because it destroys the highest ATK only.
There's many ways to take the deck, but I'm holding my breath for Konami to potentially make something good instead of it being Chimerea or Salvation-tier