This deck's point is to summon "Dragon Core Hexer" and another level 8 dragon monster. Using these, you can summon "Phantasmal Lord Ultimitl Bishbaalkin", then use his effect to summon tons of tokens. Then, use the tokens to link summon a ton of monsters with different attributes, then use those to link summon "Arrival Cyberse @Ignister".
An alternate way to use this deck, and possibly better for first turns, is to summon "Ultimaya Tzolkin" instead of "Phantasmal Lord Ultimitl Bishbaalkin". Then, by setting a spell/trap card, you can summon either "Clear Wing Synchro Dragon" or "Crystal Wing Synchro Dragon".