Castle Gate

Edison Card Text
This card can't be destroyed by battle. Once per turn, if this card is in Attack Position, you can Tribute 1 Level 5 or lower monster to inflict damage to your opponent equal to that monster's original ATK.
No targeting
No Damage Step effect
Banlist • Unlimited
Rulings
edisonformat.net
●If you use Shield & Sword to switch the original ATK and DEF of a monster and then Tribute it with Castle Gate, the damage inflicted will be equal to the monster's unaltered original ATK. For example, if you use Shield & Sword to switch the original ATK and DEF of Mystic Tomato and then Tribute it with Castle Gate, you will inflict 1400 damage to your opponent's Life Points.
●You can Tribute a monster whose Level is reduced to 5 or less by a card effect.
●If you Normal Summon Fusilier Dragon, the Dual-Mode Beast without Tributes and reduce its Level to 5 or less with a card effect, when you Tribute it with Castle Gate you will inflict 2800 damage to your opponent's Life Points (Fusilier Dragon, the Dual-Mode Beast's original ATK).
●When you Tribute a monster with a printed ATK value of ?, no damage is inflicted to your opponent's Life Points.
edisonformat.com
If you use "Shield & Sword" to switch the original ATK and DEF of a monster and then Tribute it with "Castle Gate", the damage inflicted will be equal to the monster's unaltered original ATK. For example, if you use "Shield & Sword" to switch the original ATK and DEF of "Mystic Tomato" and then Tribute it with "Castle Gate", you will inflict 1400 damage to your opponent's Life Points.
You can Tribute a monster whose Level is reduced to 5 or less by a card effect.
If you Normal Summon "Fusilier Dragon, the Dual-Mode Beast" without Tributes and reduce its Level to 5 or less with a card effect, when you Tribute it with "Castle Gate" you will inflict 2800 damage to your opponent's Life Points ("Fusilier Dragon, the Dual-Mode Beast's" original ATK).
When you Tribute a monster with a printed ATK value of "?", no damage is inflicted to your opponent's Life Points.