- The effect of "Wattcube" which increases ATK by 1000 can only be activated during a Main Phase of your own turn.
- If you send "Wattcube" to the Graveyard to increase the ATK of a Thunder-Type monster, then the monster's ATK remains increased as long as the monster remains face-up on the field.
- ↑ 1.0 1.1 1.2 Konami Gameplay FAQ: The Shining Darkness Sneak Peek -- Card Rulings (Version 1.0)
- ↑ 2.0 2.1 Konami FAQ: Spell Card > Wattcube
- ↑ Konami FAQ: The increased ATK of a Thunder-Type monster by the effect of "Wattcube" remains increased for how long?
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