Kryx RPGThemesMonsters
1 minute/stamina die

As an action, you can make a weapon attack in an attempt to menace the creature, foiling its attacks and punishing them for harming others. On a hit, the creature must succeed on a Will saving throw or it is marked by you for the duration or until you willingly move away from the creature, you are incapacitated, someone else marks the creature, or any of your companions do anything harmful to it. While marked, you have advantage on opportunity attacks against the target and the target has disadvantage on any attack roll that doesn’t target you.