Thunder King Rai Oh Vs Xyz Homework


TCG Rulings

Mentions in Other Rulings

OCG Rulings

On Negating Summons (In General)

  • Sending this card to the Graveyard is a cost to activate the effect which negates Special Summons. This effect does not target.[1]
  • "Thunder King Rai-Oh"'s effect activates after the Summon has been declared, but before the Summon is successful.[4]

On Negating the Summon of Specific Cards

On Not Adding Cards to Hands

  • If the effect of "Thunder King Rai-Oh" which prevents cards from being added to the hand from the Deck except by drawing is active, then players may still add cards to their hands by drawing them from the Deck. Thus, "Pot of Avarice" may still be activated while "Thunder King Rai-Oh" is on the field, and the player will still draw cards from his Deck.[11]

Versus Specific Cards

  • Crystal Seer: When resolving the effect of "Crystal Seer", if "Thunder King Rai-Oh" is face-up on the field, then the card to be added to the hand is instead sent to the Graveyard. The other card is returned to the bottom of the deck normally.[13]
  • Wattcobra: If "Thunder King Rai-Oh" is on the field, then when "Wattcobra" inflicts battle damage by attacking directly its effect activates mandatorily. However, the effect which adds a "Watt" monster to your hand is not applied.[21]


  1. ↑Konami FAQ: Effect Monster > Thunder King Rai-Oh
  2. FAQ: Please explain what Special Summons can and cannot be negated by the effects of "Thunder King Rai-Oh", "Solemn Judgment", and so on.
  3. ↑Konami FAQ: Can the effects of cards negate Synchro Summons?
  4. 4.04.1Konami FAQ: What kind of Special Summons can be negated with the effect of "Thunder King Rai-Oh"?
  5. ↑Konami FAQ: If "Solemn Judgment" negates the Special Summon of "Backup Warrior", then can you Synchro Summon during the same turn?
  6. ↑Konami FAQ: Can the Special Summon of "Endymion, the Master Magician" be negated by "Thunder King Rai-Oh" or "Solemn Judgment"?
  7. ↑Konami FAQ: When you Special Summon "Lava Golem", can your opponent activate the effect of "Thunder King Rai-Oh"?
  8. ↑Konami FAQ: Can effects like "Solemn Judgment" and "Thunder King Rai-Oh" negate the Special Summon of "Machina Fortress"?
  9. ↑Konami FAQ: Can "Reinforcement of the Army" be activated when "Thunder King Rai-Oh" is face-up on the field?
  10. ↑Konami FAQ: Can you activate "Gold Sarcophagus" when "Thunder King Rai-Oh" is on the field?
  11. ↑Konami FAQ: If "Thunder King Rai-Oh" is on the field, then can cards like "Pot of Avarice" which draw still be activated?
  12. ↑Konami FAQ: Because you do not know if the card would be added to the Hand, can "Conscription" be activated while the effect of "Thunder King Rai-Oh" is active?
  13. ↑Konami FAQ: What happens when the effect of "Crystal Seer" activates while "Thunder King Rai-Oh" is face-up on the field?
  14. ↑Konami FAQ: What happens when the effects of "Magical Merchant" or "Cyber Jar" activate while "Thunder King Rai-Oh" is on the field?
  15. ↑Konami FAQ: When "Elemental HERO Stratos" is Normal/Special Summoned while "Thunder King Rai-Oh" is face-up on the field, can the effect be activated?
  16. ↑Konami FAQ: While the effect of "Thunder King Rai-Oh" is active, can you activate "Emblem of Dragon Destroyer" or other cards which can add cards to the Hand from both the Deck and from other places?
  17. ↑Konami FAQ: Can "Painful Choice" be activated when the effect of "Thunder King Rai-Oh" is active? How would it resolve?
  18. ↑Konami FAQ: Can you activate "Pot of Duality" if "Thunder King Rai-Oh" is on the field?
  19. ↑Konami FAQ: Can the effect of "Power Tool Dragon" which adds an Equip Spell Card to the hand be activated while the effect of "Thunder King Rai-Oh" is active?
  20. ↑Konami FAQ: What happens when the effect of "Sangan" activates when "Thunder King Rai-Oh" is face-up on the field?
  21. ↑Konami OCG FAQ: If "Thunder King Rai-Oh" is on the field when the effect of "Wattcobra" activates, then can you add to your hand?

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Andrea Rossi’s E-Cat — the device that purports to use cold fusion to generate massive amounts of cheap, green energy — has been verified by third-party researchers, according to a new 54-page report. The researchers observed a small E-Cat over 32 days, where it produced net energy of 1.5 megawatt-hours, or “far more than can be obtained from any known chemical sources in the small reactor volume.” The researchers were also allowed to analyze the fuel before and after the 32-day run, noting that the isotopes in the spent fuel could only have been obtained by “nuclear reactions” — a conclusion that boggles the researchers: “… It is of course very hard to comprehend how these fusion processes can take place in the fuel compound at low energies.”

This new report [PDF] on the E-Cat was carried out by six (reputable) researchers from Italy and Sweden. While the new E-Cat looks very different from previous iterations, the researchers say that it uses the same “hydrogen-loaded nickel” and additives (most notably lithium) as a fuel. The device’s inventor, Andrea Rossi, claims that the E-Cat uses cold fusion — low-energy nuclear reactions, LENR — to fuse nickel and hydrogen atoms into copper, releasing oodles of energy. The researchers, analyzing the fuel before and after the 32-day burn, note that there is an isotope shift from a “natural” mix of Nickel-58/Nickel-60 to almost entirely Nickel-62 — a reaction that, the researchers say, cannot occur without nuclear reactions (i.e. fusion). The researchers say there is just 1 gram of fuel inside the E-Cat. For more info about the science/chemistry behind LENR, read our previous story about Rossi’s E-Cat.

New style E-Cat device being weighed

The E-Cat test setup

The researchers are very careful about not actually saying that cold fusion/LENR is the source of the E-Cat’s energy, instead merely saying that an “unknown reaction” is at work. In serious scientific circles, LENR is still a bit of a joke/taboo topic. The paper is actually somewhat comical in this regard: The researchers really try to work out how the E-Cat produces so much darn energy — and they conclude that fusion is the only answer — but then they reel it all back in by adding: “The reaction speculation above should only be considered as an example of reasoning and not a serious conjecture.”

Anyway, now that we’ve got the necessary cynicism/scrutiny out of the way, let’s get down to what everyone’s really interested in: The utterly insane amounts of energy produced by the E-Cat. In the table below you can see some figures from the 32-day test. The most important figures are on the right hand side: a COP (coefficient of performance) of up to 3.74, and net power production of 2,373 watts. Remember that this is a small device that produced these kinds of figures for 32 days straight. Total energy obtained over 32 days was 1.5 MWh.

To put this into perspective, the E-Cat tested by the researchers has an energy density of 1.6×109 Wh/kg and power density of 2.1×106 W/kg. This is orders (plural) of magnitude higher than anything else ever tested — somewhere in the region of 100 times more power than the best supercapacitors, and maybe a million times more energy than gasoline. In the words of the researchers, “These values place the E-Cat beyond any other known conventional source of energy.”

Read: NASA’s cold fusion tech could put a nuclear reactor in every home, car, and plane

This is what a commercialized E-Cat will apparently look like, when Rossi finally gets around to changing the world.

Obviously, if these third-party findings are to be believed — if the E-Cat really is performing cold fusion — then this is rather exciting. We are talking about an extremely cheap, green, and dense power source that could quite literally change the world.

Before the world can be changed, however, there will now be a very extensive period of scrutiny from the scientific community at large. The previous third-party analysis of the E-Cat device, published in March 2013, was attacked and debunked very rapidly. It seems this new report has been intentionally designed so that there are fewer plot holes and logical leaps. The research paper has reportedly been submitted to the Arxiv pre-print server, with the hope of eventually being published in the Journal of Nuclear Physics.

The next few weeks could be very interesting indeed. According to one report at Sifferkoll, a big bank downloaded the new E-Cat report just minutes after it was made available online — and “oil futures have stayed volatile since.” And of course this morning Glasgow University announced that it would be selling its fossil fuel investments. Hmm…

Now read: 500MW from half a gram of hydrogen: The hunt for fusion power heats up

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