The crow is a succubus that is in a crow form most of the time.
Testament must curse his opponents before the crow can attack them. To do this he must hit them with his phantom skull attack. The phantom skull has two versions a punch version that stays near the ground performed by inputting 236P and kick version that travels up high performed by inputting 236K.
Once cursed the opponent has a pink circle on them the crow begins attacking until Testament is hit or it wears off. The punch version last for 10 seconds and the kick version last for 17 seconds. The crow attacks with four different attacks in four different patterns. I copied the patterns from the Testament thread.
L = Low, H = High, S = Schythe, F = Feathers. Brackets are kick-curse extensions.
1: L L S F H (L S S)
2: F S L H H (L S F F)
3: H F L S F (S H L S)
4: S S H F F (L H H)