Re-attachable Xyz?

[CLR]

Title of card is yet to be determined.
3 Level 7 Monsters (will probably go with a specific archtype, but still working on it)

Spellcaster/Xyz/Effect
ATK 4000/DEF 3000
This card cannot be summoned except for Xyz Summon. This card cannot be placed face-down or declare an attack for any reason. During your Main Phase, you can decrease the ATK and DEF of this card by 500 and detach a material off of this card and Special Summon it on your side of the field in face-up ATK position. Its effects are negated and its ATK and DEF is equal to the DEF of this card. During your End Phase, re-attach any monsters summoned by this effect to this card.

Keep in mind that it can summon all three of it's materials during the same turn, but will decrease its stats by 500, making the monsters and itself rapidly weaker. So the first monster's ATK and DEF is 2500/2500, and the next is 2000/2000, and etc. So if your opponent can stall enough to get around this cards attack abuse, it can easily destroy this card.