Edison format ruling
Water Dragon
Card effect (current official text)Cannot be Normal Summoned/Set. Must be Special Summoned with "Bonding - H2O". The ATK of FIRE monsters and Pyro monsters on the field becomes 0. When this card is destroyed and sent to the GY: You can target 2 "Hydrogeddon" and 1 "Oxygeddon" in your GY; Special Summon them.
Rulings
- When this card on the field is destroyed and sent to the GY, its Optional Trigger Effect activates. You must have at least 2 "Hydrogeddon" and 1 "Oxygeddon" in your GY to target, otherwise the effect will not activate. If you have 3 correct targets, the opponent can chain "Disappear" to remove from play 1 of the monsters, but the other 2 will still be Special Summoned.
- The effect of "Water Dragon" that activates when it is destroyed targets 2 "Hydrogeddon" and 1 "Oxygeddon" in the GY.
- If you do not have 3 open Monster Card Zones after "Water Dragon" is sent to the GY, you cannot activate its effect.
- If "Water Dragon" was face-down on the field when it was destroyed and sent to the GY, you can still activate its effect.
- Missing the Timing: If "Water Dragon" is destroyed by an effect in the middle of a chain, you will miss the timing and cannot Special Summon the 3 monsters from your GY.
- While "Water Dragon" is face-up on the field, either player can activate an effect to increase the ATK of a FIRE or Pyro-Type monster, but the Continuous Effect of "Water Dragon" will change it back to 0.
Rulings data courtesy of Format Library — formatlibrary.com. Spotted an inaccuracy? Flag it in the Edison forum — sourced change requests get reviewed.