Uma

Uma’s 4-star skill consists in her putting a marker for 4 seconds on an enemy lineup after 5 seconds in the battle. This marker will have as an effect that the enemy misses his normal attacks. This skill can proc up to twice in a battle with a cooldown of 10 seconds between both skills.

Red Weapon :

Uma's ability to awaken the war soul [Viper Secret Order] has been changed to: After the battle begins, if Uma uses an active army ability, she will inflict [Disarmed] status on enemy lineups with death markers for 4 seconds. If there are no deployments with death markers, a random deployment will be selected as the target. Triggers up to 3 times in a battle and has a cooldown of 10 seconds.
[Disarmed] status: Normal attacks miss their targets