yugioh synchro xyz deck Complete Custom for Yu-Gi-Oh! Synchro Xyz Festival Banlist |

Its one half of the powerful effect on Prophet of Kruphix, a card on the Commander Ban List

Special Summon from your Extra Deck, 1 Rank 8 Dragon Xyz Monster with 3000 ATK, using this card you control as material (this is treated as an Xyz Summon, transfer its materials to the Summoned monster), then you can attach 1 "Galaxy" monster from your Extra Deck to it

Realistically, you'll struggle to find this for $15 unless you're at a store mid-restock, but it's theoretically a steal of a deal

It could even be used during your opponents turn, which is great

Putting trample and resilience on it

Use zippered binders for additional protection against dust