Deck's built around the multiple synergies Earthbound and Azamina have, Azaminas act as really strong extenders that help you play through at least 2 handtraps but still end on something after a 3rd, they also guarantee you a DARK monster to use as material for Geo Gremlina (your main playmaker) using Harmonic Synchro Fusion
Deck's also immune to nibiru which is absolutely glorious
All the combos are in this combo sheet here:
https://docs.google.com/document/d/11Tpm6uSWFkWe4unTgKAc5IMQr2Apx-pPvSjoDkQVZs8/edit?usp=sharing
I recommend checking out my video guide here for a more in-depth look into the deck, how it plays, some tech, alternative builds, etc.
https://youtu.be/P1V7wZE8Tf4?si=J3z6-8VNFCkNNlMJ