You can parry an attack by holding your shield (hold ZL) and tapping the A button. There is a specific timing for each type of attack. Be sure to time your Parry correctly, or you will lose a heart in the process.

How do you parry an attack in Zelda?

Parry Attacks can be performed by targeting an enemy and then hitting the A Button when its icon flashes as the enemy is about to perform an attack. This will make Link perform an automatic counterstrike while evading the enemy's attack. They cannot be performed while raising the Shield.

How do you perfect guard BotW?

A Perfect Guard can be performed with any Shield the moment before an enemy's attack lands by pressing the A-button. Executing a Perfect Guard temporarily stumbles said enemy, allowing for Link to quickly counter the attack, and may also disarm the enemy.