[@Eklispe] Ye, looks fine to me. You also wanted me to suggest cards, so:

-Moon Mirror Shield: Battle-focused archetype and a moon-based card.
-Three Strike Barrier: Lunalight are very battle-focused, so this is a protection trap that slots right in.
-The Grave of Enkindling: Bring back Cat or Panther Dancer and use it to fuse the next turn. Bonus points if you combo it with something like Defenders Intersect.
-Fusion Guard: Protection for effect damage and gets one of your Lunalight Fusions in the GY.
-Tri-and-Guess: Ez 3000 LP against non-fusion users.
-Prideful Roar: When all else fails, go full Jack Atlas. This one's just a personal favorite of mine.

Admittedly it's a lot of traps and not a lot of spells because traps are something your deck list didn't seem to have a lot of.