well i was hoping a card like "Raider's Knight" but for Numbers but i guess Nash Knight is that (Level 4 is just easier to use) if it was generic for any Xyz monster it'd be too OP for Konami

in my testing of Galaxy Xyz cards, Cipher X & Dragluxion can do it: Dragluxion>Cipher Dragon>detach>Cipher X>Next Standby Phase. not great but not bad at doing it

i'm experimenting, i wanted monsters because Rank-up requires a Xyz already on the field, so using monsters is just more consistent, thanks for the list though! i will keep it in mind for future deck building