SO FAR i got...
PUMPKIN (only 2 tries, yuppiieee)
WITCH (more than 13 tries, got it on the last day)
BOO (i think 4 tries, got it on the last day as well)
WRAITH (just summoned it)
SPIDER (about 7 tries i think)
SKELETON (more than 15 tries -_-)
i'm trying for zombie, without luck. i mever tried for raven or vampire actually.