The deck consists of 1 cards; 6 Main Deck Monsters, 1 Spell Card, and 4 Extra Deck Monsters. The deck's main strategy is loading up the Graveyard with many Hallow's Eve cards for you to Summon quickly and efficiently using their effects, and to use them as Xyz Materials for Xyz Summons. This gives the deck a lot of synergy with Link decks that could use extra materials, as well as
That Grass Looks Greener which could potentially send everything you could ever need to the Graveyard. The field spell has an interesting amount of Synergy with Lightsworn, so Hallow's Eve Lightsworn could definitely be a viable deck option.
Finally, I think it's worth mentioning that a lot of other spooky support cards have been released this month, as well as a rarity-bumped Mishal the Martyr reprint, so make sure to check them all out!
Happy Halloween!