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Yu-Gi-Oh! Rulings Questions


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Substep 4 Damage Calculation

 

Some effects in the Yu-Gi-Oh! TCG are applied "during damage calculation". Damage calculation is a specific event in the Damage Step during which we compare the ATK and/or DEF of the monsters in battle and inflict Battle Damage, if appropriate, following the rules on Pages 35-36 of the rulebook (Version 7.0). Some effects are applied during this very specific event, like "Injection Fairy Lily" and "Kuriboh", begin a Chain, while Continuous Effects that are applied during damage calculation do not.

 

We only get one Chain with which to activate effects that are activated "during damage calculation". Only effects that are activated "during damage calculation" and effects that negate them, such as Counter Trap Cards and the effects of cards like "Herald of Orange Light" and "Light and Darkness Dragon", can be activated at this time. Effects that increase, decrease, halve, double, etc. the ATK and/or DEF of a monster cannot be activated at this time, unless they are specifically allowed to be activated "during damage calculation". This means that cards like "Shrink", which are not specifically activated "during damage calculation", cannot be activated, while "Injection Fairy Lily's" effect can be activated.

 

Any Continuous Effects specific to damage calculation are applied (turn on) before the "during damage calculation" Chain begins, but some can be applied or disappear during the Chain's resolution if the conditions of the battle change (ATK/DEF change, Life Point change, etc.) After the "during damage calculation" Chain has finished resolving and all appropriate Continuous Effects have been applied, the results of the attack are determined and any resulting Battle Damage is inflicted.

 

If a monster is destroyed by a card effect during damage calculation ("Divine Wrath", etc.), any remaining effects on the Chain finish resolving. After the Chain finishes resolving, damage calculation stops. No battle damage is inflicted and neither monster is destroyed by the battle. The monster that is destroyed by a card effect is not considered to have been destroyed by battle, because damage calculation stopped and this determination wasn't made. The remainder of the Damage Step continues as normal.

 

 

 

Honest Issues

 

"Honest" is a bit odd, because it can be activated anytime from the start of the Damage Step up to and including damage calculation. A player's ability to respond to its effect will depend on when "Honest's" effect is activated. Some card texts do no indicate that a card can be activated during damage calculation, but their card rulings do, like "Injection Fairy Lily" and "Honest". Be sure to check the FAQ and Judge Forum if you are uncertain. (Keep in mind that a very, very small number of cards use this specific portion of the Damage Step.)

 

Example 1: Injection Fairy Lily and Rising Energy

 

Player A has "Dark Magician" in Attack Position and "Rising Energy" set in his Spell and Trap Card Zone. His opponent has "Injection Fairy Lily" in Attack Position. Player A attacks "Injection Fairy Lily" with "Dark Magician". During damage calculation, Player A's opponent activates "Injection Fairy Lily's" effect. Player A cannot chain "Rising Energy" to increase the ATK of "Dark Magician".

 

Example 2: Injection Fairy Lily and Divine Wrath

 

Player A has "Goyo Guardian" in Attack Position and "Divine Wrath" Set in his Spell and Trap Card Zone. His opponent, Player B, has "Injection Fairy Lily" in Attack Position. Player A attacks "Injection Fairy Lily" with "Goyo Guardian". During damage calculation, "Injection Fairy Lily's" effect is activated. Player A chains "Divine Wrath" to negate the effect of "Injection Fairy Lily" and destroy it. Damage calculation stops, no Battle Damage is inflicted to Player B's Life Points, and "Goyo Guardian's" effect does not activate because "Injection Fairy Lily" was destroyed by the effect of "Divine Wrath" and not by battle. The remainder of the Damage Step continues as normal.

 

Example 3: Injection Fairy Lily and Skyscraper

Player A has "Skyscraper" in her Field Spell Card Zone and "Elemental Hero Wildedge" in Attack Position. She attacks her opponent's Attack Position "Injection Fairy Lily". During damage calculation, her opponent activates "Injection Fairy Lily's" effect, increasing its ATK to 3400. After "Injection Fairy Lily's" effect resolves, "Skyscraper's" Continuous Effect is applied to increase the ATK of "Elemental Hero Wildedge" to 3600.

 

Example 4: Honest Vs. Honest

 

Player A has "Honest" in his hand and "D.D. Warrior Lady" in Attack Position. His opponent, Player B, has "Honest" in her hand and "Blue-Eyes White Dragon" in Attack Position. Player A attacks the "Blue-Eyes White Dragon" with "D.D. Warrior Lady". During damage calculation, he activates the effect of "Honest". If Player B wants to activate the effect of their "Honest", they would need to chain it. They cannot wait until after Player A's "Honest" resolves and start another Chain, because when the current Chain finishes resolving damage will be calculated and the timing to activate the effects of cards like "Honest" will have passed.

 

Hopefully this is enough.

 

EDIT: To assist, I will try to find the break down of Chain.

 

Chain should be simple, but Just in case i'll post it here in terms of priority.

 

Turn Players Mandatory Effect(s)

Opponents Mandatory Effect(s)

Turn Players Optional Effect(s)

Opponents Optional Effect(s)

 

But I'll try to find the exact break down of chains.

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But the Battle step has nothing to do with Metalmorphs ATK modification. MetalMorph doesn't activate the instant an attack is declared' date=' it waits until Damage Calculation, then it activates.

[/quote']

 

Actually, I just showed, by comparing Metalmorph and Magic Cylinder, that Metalmorph does exactly this. Go read that post.

 

Your previous post doesn't even matter, because Metalmorph doesn't activate during the Damage Step.

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But the Battle step has nothing to do with Metalmorphs ATK modification. MetalMorph doesn't activate the instant an attack is declared' date=' it waits until Damage Calculation, then it activates.

[/quote']

 

Actually, I just showed, by comparing Metalmorph and Magic Cylinder, that Metalmorph does exactly this. Go read that post.

 

Your previous post doesn't even matter, because Metalmorph doesn't activate during the Damage Step.

 

I read that post and the comparison to those two cards makes absolutely no sense. How can you compare "Negate the attack of 1 of your opponent's monsters" with "When the equipped monster attacks, it gains additional ATK, during damage calculation only, equal to half the ATK of the attack target."?

 

Explain your logic.

 

tl;dr: You cant compare two cards that do two completely different things.

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But the Battle step has nothing to do with Metalmorphs ATK modification. MetalMorph doesn't activate the instant an attack is declared' date=' it waits until Damage Calculation, then it activates.

[/quote']

 

Actually, I just showed, by comparing Metalmorph and Magic Cylinder, that Metalmorph does exactly this. Go read that post.

 

Your previous post doesn't even matter, because Metalmorph doesn't activate during the Damage Step.

 

I read that post and the comparison to those two cards makes absolutely no sense. How can you compare "Negate the attack of 1 of your opponent's monsters" with "When the equipped monster attacks, it gains additional ATK, during damage calculation only, equal to half the ATK of the attack target."?

 

Explain your logic.

 

tl;dr: You cant compare two cards that do two completely different things.

 

Oops...

I originally only read the unerrata'd card, and then copy/pasted the text which was the errata'd text.

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Let's say I have Swiftstrike Armor active.

If, during the Draw Phase I activate Good Goblin Housekeeping, do I get to Special Summona Six Samurai I drew with the effect, or do I miss the timing because of the effect that requires one card to be put on the bottom of the deck?

 

I know this works with Jar Of Greed and Reckless Greed, etc., but I was just curious if the same works with Good Goblin Housekeeping.

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Let's say I have Swiftstrike Armor active.

If' date=' during the Draw Phase I activate Good Goblin Housekeeping, do I get to Special Summona Six Samurai I drew with the effect, or do I miss the timing because of the effect that requires one card to be put on the bottom of the deck?

 

I know this works with Jar Of Greed and Reckless Greed, etc., but I was just curious if the same works with Good Goblin Housekeeping.

[/quote']

 

 

During your Draw Phase' date=' if you draw a "Six Samurai" Monster Card, [b']you can[/b] Special Summon it.

 

Looks like you're sheet outta luck, mate.

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Let's say I have Swiftstrike Armor active.

If' date=' during the Draw Phase I activate Good Goblin Housekeeping, do I get to Special Summona Six Samurai I drew with the effect, or do I miss the timing because of the effect that requires one card to be put on the bottom of the deck?

 

I know this works with Jar Of Greed and Reckless Greed, etc., but I was just curious if the same works with Good Goblin Housekeeping.

[/quote']

 

 

During your Draw Phase' date=' if you draw a "Six Samurai" Monster Card, [b']you can[/b] Special Summon it.

 

Looks like you're s*** outta luck, mate.

 

Would Reckless Greed work instead of GGHK?

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Let's say I have Swiftstrike Armor active.

If' date=' during the Draw Phase I activate Good Goblin Housekeeping, do I get to Special Summona Six Samurai I drew with the effect, or do I miss the timing because of the effect that requires one card to be put on the bottom of the deck?

 

I know this works with Jar Of Greed and Reckless Greed, etc., but I was just curious if the same works with Good Goblin Housekeeping.

[/quote']

 

 

During your Draw Phase' date=' if you draw a "Six Samurai" Monster Card, [b']you can[/b] Special Summon it.

 

Looks like you're s*** outta luck, mate.

 

Would Reckless Greed work instead of GGHK?

 

Yep.

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In the text of Synchro Change doesn't say that the summon is a synchro summon, so I suppose the synchros cannot be reborned from the graveyard. But I want to know about this specific case: I summon Stardust Dragon with this. I use book of moon and then flip it face-up to recover it's effect. Later during the duel I tribute Stardust for it's own effect. Question: Will Stardust be Special Summoned by it's own effect? If that is possible, can I special summon Stardust that was previously special summoned by it's own effect, or is it still treated as not properly summoned?

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