Possible bug for Royal Keeper

When Royal keeper is face down and attacked, its effect activates after damage calculation. Damage calculation is done using original def (1700). After that the effect activates and def increases. It looses the point. Is this a bug?

Answer

Answer List

anoymous

No, thats how cards like Royal Keeper or Golem Sentry works. If a card has the text "if this card is flipped face-up", their effects will activate after damage step

anoymous

If 1900 ATK Vorse Raider attacks a face-down Royal Keeper.
1. Royal Keeper flips
2. Perform damage calculation, and Royal Keeper is determined to be destroyed because it has 1700 DEF but do not send it to the Graveyard yet
3. AFTER damage calculation, FLIP effects apply now. Royal Keeper gains 300 ATK/DEF
(I know it is pointless right now but that's how the ruling works)
4. Royal Keeper is destroyed by battle and sent to the Graveyard

anoymous

To OP,
this line "If attacked, this effect resolves after damage calculation" is not necessary as ALL flip effects always activate after damage calculation.

If the flip monster is attacked while face down, FLIP effects ALWAYS happen after damage calculation, no matter if it modifies atk/def or not.

anoymous

To OP
in duel links, step by step
1. a player enters battle phrase
2. a monster declares a battle
3. battle step
*4. DAMAGE STEP*
5. end step

Here's a detailed breakdown of damage step
https://www.yugioh-card.com/uk/gameplay/damage.html

anoymous

Reply to oldest answer: I am really confused with this line in the end then, "If attacked, this effect resolves after damage calculation"
It says effect resolves AFTER damage calculation, and for that effect has to be applied BEFORE damage calculation. Or does it apply only when the card is in attack mode?

anoymous

explain better

anoymous

Not a bug. That is the ruling.

If a face down monster is attacked, "flip effects" ALWAYS activate after damage calculation, even if the last part of the text from Royal Keeper does not mention it.

Same rule another example, a 500 ATK monster can and will destroy a face down Slate Warrior as the flip effect happens after damage calculation and Slate Warrior would be destroyed before the flip effect activates.