Forum:Few XYZ questions

1) Does Book of Moon or any other effect that flips an XYZ monster face down cause it to lose its material monsters? 2a) Can Feedback Warrior turn XYZ monsters into level 3 monsters? 2b) If Feedback Warrior can be used on XYZ monsters, does the XYZ monster keep any XYZ material it had for the new XYZ monster it is summoning?

Example of 2b. Number 39: Utopia is sitting on the field with Trident Warrior and Gene-Warped Warwolf. Feedback Warrior is Normal Summoned and targets Utopia with its effect. Utopia and Feedback become XYZ material for Number 30: Acid Golem of Destruction. Does Acid Golem get all four material to use for its effect, or only two and the original XYZ material attached to Utopia get sent to the graveyard?