Due to the Ban/Limited list that takes effect on March 1, 2023, use of the Gabumon package is impossible and not as consistent. Going back to the basics of purple trashing and milling. BT2 Impmon and BT14 Devimon give this deck much more explosive trashing capabilities on top of several checks into security. BT15 Bakemon will become a new staple as well as it gives both a Draw 1/Trash 1 upon digivolution and deletion, with a [Retaliation] Inheritable.
BT15 Apocalymon is also a potential good choice for a more affordable top-end card. It synergizes well with BeelStarmon, allowing you to access the [On Play] effect to play another 7Cost Option for free.