Tokikofag here

I decided to cave in and buy the Cara pack and get her preview. I tried and tested her throroughly not only raising her in the quests and event, but also pushing her through all the new tower. here's my observations

Cara is a very melee character. Her moves are short ranged with few exceptions, she has a quaint gimmick around gaining points by hitting enemies and spending them to hit harder with your skills, however this gimmick is ultimately not very interactive or interesting and the actual moves you can use in a build are quite limited.
Her normal string is pretty standard, it has average range, and she has two modifiers for it one making the hits slightly larger and one making them faster and none grant soft super armor unlike Lina and Spinel. From here two of her moves are reactionary. One is a dodge skill that maxes your blood count instantly and the other is a counter hit.

From there you have only 4 moves to work with in an actual build: Blood Spear, a straight projectile (melee type) that normally deals low damage but it's pretty respectable on a blue build. Waltzing Bloodblades, a lunge attack that hits all around her that deals low damage normally except on a red build where it's decent, Crimson Reign a follow up attack which deals pitiful damage but it quickly charges the blood gauge.

From there her 4th skill slot is her 3 color skill that her builds are centered around
Bloodfist Retribution is her blue skill is a very strong move. it's her 150% pure damage skill and likely her the best skill in her hit. It's an autocombo move that felivers a flurry straight in front of her similar. With blood boost it's damage is similar to Astaroth's Supernova. It has the flaw that it doesn't have super armor, so you can get knocked out of it.