Effect
When this card inflicts battle damage to your opponent by a direct attack: You can increase this card's Level by 1 and ATK by 500.
The monster effect of "Ancient Dragon" is a Trigger Effect.
It does not target.
This effect can be activated optionally after damage calculation when "Ancient Dragon" inflicts battle damage to your opponent by a direct attack.
The Level increase and ATK increase from the monster effect of "Ancient Dragon" remain applied as long as "Ancient Dragon" remains face-up in the Monster Zone. (If "Ancient Dragon," while its Level is increased and its ATK is increased, inflicts battle damage to your opponent by another direct attack, you can activate the effect again.)
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