The Really Big Edison Tournament series returns with R.B.E.T.03! 
Saturday May 28th 1 PM EST - 10 PM EST
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The Rules Differences page has been updated, as Spirit Monsters were discovered to have a functional errata / ruling related to their mandatory End Phase Trigger Effects. Apply the following ruling for Spirit Monsters, Lightsworns, and any mandatory Trigger Effect that activates in a certain Phase:

• This effect keeps activating (if its activation is negated) until it finally resolves (even if it resolves negated) [REF].
  

Also, the Functional Errata page has been updated to include "Mark of the Rose", as it has recently been pointed out to have 2 Trigger-like Effects up until its erratum in Fusion Enforcers [REF]. The individual card rulings have also been updated.

• These Trigger Effects won't activate while the effect of "Cold Wave" lingers.
  

After many months of investigation we've reached a roadblock... there's no evidence that Konami's rulings change [1] regarding "Rivalry of Warlords" and "Gozen Match" took effect at or before SJC Edison. Thus the responsible and prudent course of action is to apply the Upper Deck Entertainment rulings [2] to the cards. This change only affects the ability to Tribute Summon (not Special Summon).

 Moving forward, apply these UDE rulings to Rivalry and Gozen: 

• If you have only 1 monster on the field face-up, you may Tribute it for a monster that is a different Type/Attribute.
  
• If you have 2 monsters on the field face-up of the same Type/Attribute, you cannot Tribute 1 of them for another monster that is a different Type/Attribute (even "Jinzo") as you would then have 2 different Types/Attributes.

E3 Yugioh! just hosted the biggest Edison tournament since the SJC! Check out the top 8 here: