Honestly the part you care about is the damage reduction and taunt, which can be useful depending on the type of enemy you're fighting. She wants very much to be the off-tank, in a classic ARSMG formation, and actually has decent tiles for it.

She is NOT for normal use due to her awful DPS, but the taunt can be useful vs certain enemies in the distance to keep them from interfering with the fight (for example, the new model Army tanks). The taunt can also affect random-target type enemy attacks.

Everyone's favourite White Knight! (Unless you like Tim better, you weirdo.) Same tiles as Grizzly (literally the same), but with a defensive skill instead of an offensive one. She only shields Shotgun, SMG and HG dolls so it isn't full coverage (unless you're an all HG team anyway), but the ability to shield something like KSG is nice. Her shield actually scales based on how damaged a unit she's shielding is, but the exact formula remains a mystery (less HP = more shield though).