Talk:Heavenly Crystal Dragon, Aldo Athora/@comment-26021817-20180221003901/@comment-27282915-20180221013039

This is true, and it is already implied in the third bullet point on the Ruling page.

As stated, "This card's Overturn is activated after attacks are declared but before the in-combat play timing." On-attack effects trigger during the in-combat play timing (the one where only one Counter can be used). Therefore, this card's Overturn must be activated before on-attack effects trigger.

Granted, it could probably use some more detailed nuance, like referencing the Detailed Rules directly.