Raven is one of the endgame bosses in . She will have many attacks and tricks since it is close to the game's conclusion. Your build and combat style will be very important when facing Raven.
You will want to have a fairly strong Eve to challenge Raven. Take the time to farm SP in and allocate it to both Survival and Beta skills.
A key factor to winning is starting defensively and only attacking opportune times. Raven is an Alpha Naybita, placing her among the strongest in the enemies you will encounter. Her sword fighting style is similar to Eve and Tachy but with even more ferocity.
She also favors the use of ice attacks to free or slow enemies. Raven is the deadliest when fought up close. You want to keep a fair distance away to avoid her strongest sword slashes.
However, EVE should not rely on guns as she will almost always dodge out of the way. Instead, bait her and Perfect Parry as she lunges in.