We all know ABPF will bring with it Godwin's cards he used to line up the Sun dragon and Moon dragon in one turn.
Undoubtedly, this will lead to many people hyping these, and saying how they allow for synchro summon much easier.
But, if you put thought to it, they arent so good.
You use two cards to synchro summon a synchro monster, great.
All of the combo parts find each other. Great
The tuners can be used for every synchro monster. Great.
But what you dont see is that you are going to be eating up 3-4 cards a turn to summon these monsters, and ultimately they wont be on the field for long, especially in this format.
Yes, the sun and moon fetch each other. But one BTH and your whole game is gone.
Looking at the top tier decks recently, none of these are synchro based any longer.
Even if these cards give you easy access to synchro summons of a wide variety, ultimately the deck as a whole will not even make tier 2.