Shield Breaker

Your skill in the martial arts has focused on the defeat of heavily armored foes.

Benefit

• You can as a bonus action enhance an attack you are about to make. If this attack hits, the target struck has their Armor Class lowered by two until the end of your next turn. Subsequent hits using this ability extend the duration instead of lowering a creature's Armor Class.
• Whenever you hit a creature suffering from the Cowering, Frightened, or Shaken condition with a martial attack, that creature suffers from the Surrounded condition until the end of your next turn.
• A creature wielding a Shield or otherwise benefiting from a Shield bonus to AC, has their shield bonus to AC halved (rounded down, minimum 0) while you are Flanking or Surrounding them.