Devastation

• In basic attack, every 6 seconds, you can trigger a heavy attack with high and effects.
• This attack applies to the units, reducing their Piercing, Slashing, and Blunt defenses by12%, movement speed by 10% for 12 seconds, up to a maximum of 3 stacks.

How to get it A seasonal challenge, or the box from the Doctrine Dash event. That event runs every season, when purple lock ends and the gold era starts.