Open the Gaurd (Heavy Weapon Perk)

You know how to batter, hook, and force an opponent’s shield out of position, leaving their defenses exposed.

When you hit a creature with a Heavy melee weapon, or with a handaxe while dual-wielding two handaxes, you can disrupt any shield it is wielding. Until the start of your next turn, the creature gains no AC bonus from that shield while it remains within your melee reach.

This effect does not destroy or disarm the shield. You are simply preventing the target from using it effectively. If the creature moves outside your melee reach, the effect immediately ends.