Nothing really. Any Xyz material stays under it. " If an Xyz Monster is flipped face-down, or becomes controlled by the opponent, the Xyz Materials are not sent to the Graveyard. They remain attached to the Xyz Monster." - Konami
A monster can't manually change battle position on the turn it declared an attack, but it can still be flipped face-down by an effect. Golem Sentry can attack, then activate its effect in main phase 2 and flip itself face down.
Destroying a monster does not flip it. But if a monster is flipped face-up when attacked, and considered destroyed by battle, then the flip effect will still activate.
No. A monster that is face down does not 'flip' when destroyed by a card effect, and will not trigger any flip effects.
A monster flipped face-up by a card effect, such as "Book of Taiyou" or "Stop Defense", or as a result of battle is notconsidered a Flip Summon. Only flipping a Set monster manually is considered a Flip Summon.So if you attack a face-down Stealth Bird, it will be flipped but not Flip Summoned, so its effect will not activate.
Nothing really. Any Xyz material stays under it. " If an Xyz Monster is flipped face-down, or becomes controlled by the opponent, the Xyz Materials are not sent to the Graveyard. They remain attached to the Xyz Monster." - Konami
The monster will be flipped face-up at the beginning of the Damage Step. If the attacking monster is destroyed or switched to defence position before this, the defending monster is not flipped, as there is no Damage Step.
A monster can't manually change battle position on the turn it declared an attack, but it can still be flipped face-down by an effect. Golem Sentry can attack, then activate its effect in main phase 2 and flip itself face down.
No, a 'Flip Summon' is a manual change from face-down defence to face-up attack position in one of your main phases. If the monster is flipped from an attack, or by an effect, then this is a Flip, but not a Flip Summon. Therefore regular Flip Effect monsters like Night Assailant will trigger from being attacked, but monsters that require Flip Summoning like Guardian Sphinx will not.
If a monster attacks it - yes it gets flipped even if it's destroyed. If, for example, it gets nobleman of crossout on it than no, it does not get flipped. There are cards like Sasuke Samurai and Six Samurai - Irou destroys a face down card without it being flipped.
No, because it never gets flipped face-up. You can activate Raigeki Break to destroy an opponent's face-down Man-eater Bug without any monster on the field getting destroyed.
If an XYZ monster leaves the field, even temporarily, any of its materials will be sent to the graveyard.
Destroying a monster does not flip it. But if a monster is flipped face-up when attacked, and considered destroyed by battle, then the flip effect will still activate.
No. A monster that is face down does not 'flip' when destroyed by a card effect, and will not trigger any flip effects.
A monster flipped face-up by a card effect, such as "Book of Taiyou" or "Stop Defense", or as a result of battle is notconsidered a Flip Summon. Only flipping a Set monster manually is considered a Flip Summon.So if you attack a face-down Stealth Bird, it will be flipped but not Flip Summoned, so its effect will not activate.
No. As long as the monster is in Defense position, White Ninja will destroy the target monster. So if Medusa worm was flipped face-down again by its effect, then yes, but if it is still in attack position, then no.
No. Trap Hole works only when a monster is Summoned or Flipped.