Barian Hope support

"God of bonds that embodies harmony. No matter the world or the time, I will cherish these wishes forever. Everyone! Imaginary Chaos Xyz: King of Wishes - Barian Rei!"
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iCXyz Barian Hope 0 (imaginary Chaos Xyz King of Hope: Barian Rei)
Rank 8/LIGHT/Warrior/Xyz/Effect
0ATK/0DEF
4 or more Level 8 monsters
You can also Xyz Summon this card by using 1 "CXyz Barian Hope" as material. (Materials attached to that monster also become materials on this card.) When this card is Xyz Summoned: You can make the ATK of all monsters on the field 7000, and the ATK values of monsters on the field cannot be changed for the rest of this turn. Cannot be destroyed by battle. When this monster battles an opponent's monster with the same ATK, inflict damage to your opponent equal to the number of materials on this card x700.

Chariot of the Seventh Emperor
Continuous Spell
While you control exactly 1 monster whose original name includes "CXyz Barian Hope", you do not need to detach material from that monster to activate any of its effects. When your opponent attacks, or activates a card effect while you control exactly 1 "CXyz Barian Hope" monster (Quick Effect): You can pay 400 LP, and flip 1 face-up "Number C10X" monster attached to that monster face-down, that card's name and effect becomes the name and effect of the flipped material, until the end of that attack or effect resolution. During your End Phase, flip all face-down material on your Xyz Monsters face-up.