Assault
Deal damage equal to 106% ATK to a single enemy and restore HP equal to 25% of the damage dealt. If the target has no buffs, reduce their Action bar by 15%.
DMG is increased by 5%
DMG is increased by 10%
DMG is increased by 15%
DMG is increased by 15%
DMG is increased by 15%
4 Deal damage equal to 151.1% ATK to a single enemy. If the target have buffs, remove all buffs from the target and follow up with "Rising Uppercut".
DMG is increased by 5%
DMG is increased by 5%
Reduces cooldown by 1 turn
DMG is increased by 5%
DMG is increased by 10%
4 Deal damage equal to 151.1% ATK to a single enemy and gain ATK Boost for 2 turns.
Deal damage equal to 151.1% ATK to a single enemy and gain ATK Boost and SPD Boost for 2 turns.
DMG is increased by 5%
DMG is increased by 5%
Reduces cooldown by 1 turn
DMG is increased by 10%
DMG is increased by 15%
Intermediate Decoder Chip x27 
Gold x51660 Self sufficient single target DPS with lifesteal on skill 1
Skill 2 can dispel buff and give additional attack if enemy has buffs
Skill 3 does good damage and gives herself attack and speed buff
High base attack
Low base hp
Requires some protection in harder content
Rosemary (Amethyst-Knight) is a 4 stars Assault character in Artery Gear.
Rosemary is actually a very good PvE unit. She is self sufficient and can help you strip buffs and deal damage. Since her skill 1 can heal, she doesn't need a healer around against bosses if built with enough health and damage to survive.
Her skill 3 is a single target is meant to be used as the opener so she can utilize skill 2 and 1 with more damage. She excels against Iron Maiden, Centaur and Octopus hunts due to her ability to strip buffs. She can also be the sole attacker in the future raid bosses as well.
She is not much of a PvP unit as she will get destroyed easily due to her low health pool unless she goes first. Due to the lack of AoE, she at most can take out 1 unit.
Here is an example of her helping with buff striping in Octopus 9:
