Mostima

Mostima is a six-star Caster Operator in the game Arknights, known for her unique time-stopping abilities and wide-area control. She is affiliated with Penguin Logistics, but is actually a fallen Sankta, possessing black horns and wings, which is a stark contrast to the usual image of a Sankta. Mostima wields ancient Kazdelian staves called "Black Lock" and "White Key," which allow her to manipulate time, slowing enemy movement and providing SP recovery for allied Caster units. Her skills include area damage and stun control, as well as a powerful ability that can greatly slow and push back enemies. Despite her strong control capabilities, Mostima's skills have long cooldowns and low output, making her more suitable as a support and control-type Operator. Her personality is cheerful but distant, and she seems to have some reservation about emotional expression. She plays a key role in the storyline, having appeared in events such as "Code of Brawl" and "Guide Ahead." Mostima’s Module significantly enhances her slow effects, making her a powerful crowd control character in the late game. However, for new players, she may not be a high priority in terms of resource investment.