She looks like a discount STAR-chan, although it's hard to describe anything that uses a stupidly expensive round like the 5.7 as a discount anything. She has a three second long cooldown and the skill lasts for two seconds. Her big thing is that she can also buff SMGs. She can be used either a mild firepower buff or an actually not awful evasion buff, the downside of which being that getting her evasion buff to work requires moving your dolls around.

She's not the worst tank, but she's expensive to raise, and she needs her ability active to really tank. Unfortunately her base ability is meh, meaning she needs all three of her special gear equipped to be actually any fucking good. With her gear, she's acceptable, with alright uptime, but her barriers are inevitably going to fail and while the evasion boost is nice, the game has other tanks that are just as good. Still, if you must use her for some reason, there are worse tanks... provided you have the gear for her, anyway.

So make sure you have her gear equipped and leveled, or don't even bother.

On one hand, she's actually not bad, being a flashbang unit with a solid backup skill (If it's vs. a boss, she becomes a shielder tank instead with some minor evasion buffs) that also helps kill mooks faster. On the other hand, she has a mod3's price tag and opportunity cost, at a time when there's lots of nice mods running around.

If you already have a nice set of mod3 dolls, go ahead. If not, consider saving it for later.

...Oh, and you can save yourself the trouble of getting her mod equip. It's kinda pointless on a tank.

Her previous iteration can be found here

Yes I know that's not really her name. And yes, you'd think the unit whose hands are actual guns would be a handgun, but nope, she's an SMG. MICAAAAAAAA.

She has a pretty interesting skill that reminds some of C-MS. What it is is mildly more complicated, because it comes with good AND bad sides, and allows her to be both a main tank and an off tank. As an off tank, she provides decent firepower with 100% uptime, a debuff no one cares about (-acc) and a really nice buff (constant eva up!) for the main tank, while as a main tank she has permanent Eva up, buffs acc of the same column ("vertical row") but actually makes the off tanks (or just people in the same column) a little less survivable. Skill discussed in more detail in her entry, but its fun stuff.

A problem she has though is the shape of the tiles. That lacking middle row really gets in the way, but she has enough other uses that this isn't too awful if you know what you're doing (For example, you want to buff the everloving bajeezus out of your main tank's dodge instead).

Also she buffs Rifles with her tiles too too, but this doesn't seem to come up all that much.