Q&A

In this case, it's put in the power charger immediately without its effect taking effect.
It doesn't give a timing such as "at the end of the turn", so if your HP is 50 or less it's put in the power charger "immediately".
If it's in set zone C and battle damage brings your HP to 50 or less, it's put in the power charger as soon as HP has been resolved.
If you newly set it with your HP already 50 or less, it's put in the power charger immediately at the area enchant swap (before its effect takes effect).

Yes, it can.
Factory tour's effect only lasts that turn, so when the cards are swapped Nira-chan (JK BOMBER) is back to its original flame element, and NIRA-CHAN (Kan Saete Kuyashiiwa)'s "If the character card used last turn was flame" is met, so its effect can take effect.

If the player using Job Change is the priority player, their opponent's attack is set to 100, then the opponent's attack + effects are resolved.
If the player using Job Change isn't the priority player, Job Change's effect takes effect after whatever attack + effects their opponent uses, so the opponent's attack that turn is 100.

Yes, you can.
With The last dance at the ball (SHADE)'s effect, after choosing the The last dance at the ball (SHADE) in your power charger and another (SHADE) character card, the chosen The last dance at the ball (SHADE) can choose 2 more.

No. Reduce effects only apply to battle damage, so they can't reduce KAITO-INC-NEKO (SHADE)'s effect.

Yes, you can.
If you swapped out a (SHADE) character this turn, Searching !'s effect can take effect even if the character card put in the battle zone by the swap isn't a (SHADE) character card.

Yes, it does.
The fact that you swapped in a (SHADE) character card that turn remains, so Searching !'s effect can use the effect of a (SHADE) character card in your power charger.

Yes, it can.
In this case the condition of the effect of the (SHADE) character card Searching ! can choose ("If you swapped in a (SHADE) character this turn") is met, so the effect of the card chosen with Searching ! can take effect.

No, the condition isn't met in that case.
"If you swapped in a (SHADE) character this turn" means when you did the swap yourself. So even if your character card was swapped by NIRA-CHAN (Hippocampal Pain), effects with the condition "If you swapped in a (SHADE) character this turn" can't take effect unless you swapped in a (SHADE) character yourself this turn.

No, you can't choose not to reveal your hand.
You can't choose not to use an effect that can take effect (its power cost is met and its conditions are met), so while its power cost is met you have to reveal your hand, even if you don't have 4 or more elements in your hand or don't want to reveal it.

Yes. You can choose 0, in which case it's resolved as Attack +0.

No, you can't.
As a rule, you can't choose not to use an effect that can take effect (its power cost is met and its conditions are met), and you can't discard the effect even if you don't want it to take effect.

You lose.
A player loses the moment their HP becomes 0, while with a deck of 0 cards, a player only loses if they can't draw at the end of the turn.

Yes, it does.

No, it can't.

Yes. If Moon reflected on the water's POWER COST is met, you can choose not to put the character card in the battle zone, even on a turn you set Moon reflected on the water and a character card with no character card in your battle zone.

Yes, NIRA-CHAN (Kan Saete Kuyashiiwa)'s effect can move the clock.
The effects are resolved in this order:
① Compass Clock (Hunch Gray) moves the clock back to where it was before time moved forward that turn ② NIRA-CHAN (Kan Saete Kuyashiiwa)'s effect moves the clock forward by 0 to 5 more.

No, they can't.
The (SHADE) characters Searching ! and The last dance at the ball (SHADE) can choose are only characters with effects.

Moon reflected on the water's effect takes effect at the character swap step.
So it isn't affected by effects that take effect later, at the character/enchant/area enchant effects step.