It's not that hard a deck.
Timelord deck without many floodgates, swaps out mine for mound of bound of the bound creator which can net you a Sphere mode Ra if your opponent clears it.
use celestial transformation along with michion or sadion, normal summon one, special the other, attack with both, let michion halve his hp, sadion shaves another 2K off, xyz into gustav and blast the last 2K of their hp away, otherwise just vibe with your protection.