Ayrmidon
Ayrmidon is definitely one of the least used commanders in-game right now but his awakening skill is pretty good for Weakness setup. Whenever allied front lineups trigger a total 10 weakness attacks, he attacks 2 random enemy targets and also increases the weakness damage taken by the enemy lineup by 6%. However, adding him to the setup seems a bit less likely because he's still not as good Baelish or Daena and then the skill he offers compared to the price at which he offers it, makes him a bit less of a 'go-to' option!
Red Weapon :
Ayrmidon's War Soul Awakening Skill Desfire For War changed to: At the start of the battle, allied lineups at the front gain a special effect: Each time allied lineup at the front trigger 10 cumulative weakness attacks, Ayrmidon attacks 3 random enemy targets once (priority attacking front row, with a damage coefficient of 100%). Also increases the damage the target line-up takes from weakness attacks by 6%.