Main goal is to set up big board turn one with zefra/magician packages then grind out with solfachord monsters. Perfect end board will be 3/4 mat apollousa + borreload savage + herald of the arc light + the two counter traps + solfachords to follow up next turn: https://imgur.com/1zMFUez Halq combo should be main focus at the start (make sure you tribute the auroradon and a token and not 2 tokens to get the o-lion out so you can make both the arc light and savage dragon w/ 3 counters + zefraniu to keep YZ trap live), with making the apollousa before halq if you can via electrumite + chronograph (and if not, then just adding cutia or gracia to hand with electrumite for next turn if you don't already have one). Follow up turns focus on solfachords, search the ones you need with cutia and recycle them with the field spell that you can search with gracia, pend summon enough to pop a card with the field spell and use their effects (elitea, beautia, and angelia as needed) then link off any extras for whatever link monster you need to push for game.

Zefras add divine strike and get you to yang zing trap, after that don't really need so the zefraath will be main pop w/ electrumite so you don't get stuck with a scale 5. Pend magicians main way into full halq + apollo combo. Destrudo is the secondary means to get a tuner for halq and alternate dragon shrine target, or if not needed for that then any of the synchro 7s. Don't be afraid to summon ash or effect veiler for halq if you absolutely have to. Darkwurm gets scale 0 so you can pend summon cutia every turn and get searching. Chrono over astrograph in this build since you run alot of 1-ofs and with the solfachord field spell, you can just add one of them back to the hand to have a target for chrono to SS. Mare mare is for alternate auroradon route for going second where you make yazi w/ deskbot and 2 MPB tokens, pop a card, SS mare mare, make 3 mini mare tokens, use auroradon effect to tribute mini mare token to pop another card, then L4 mare mare + mini mare for denglong, denglong + last MPB token for borreload savage w/ 2 counters using the halq. 60 cards so you draw o-lion and mare mare less often.