Serialized-exclusives, like the Praetor artwork, have been far more successful in drawing attention to these singles than simply cutting print runs, so Im doubtful that more of the same just with smaller numbers in the art box will make a massive wave in the sets to come
No matter what type of person you are, try

Sort Card Type Vullaby #138Common $0.09 Vullaby #72Common $0.35 Vullaby #68Common $0.25 Vullaby #73Uncommon $0.45 Vullaby #92Common $0.26 Vullaby #57Common $0.11 Vullaby #92Common $0.13 Vullaby #119Common $0.07 Vullaby #172Common $0.05 Vullaby #63Common $0.03 Vullaby #64Common Vullaby #68Common $0.81 Vullaby #27Common $0.49 Vullaby #44Common Vullaby #47Common $0.17 Vullaby #49Common $0.13 Vullaby - 063/086 #63Common $0.08 Vullaby - 063/086 (Master Ball Pattern) #63Common $1.92 Vullaby - 063/086 (Poke Ball Pattern) #63Common $0.20 Vullaby - 144/086 #144Illustration Rare $10.30 Vullaby - 144/086 #144Art Rare $4.75 Vullaby (Dusk Ball) #138Common $0.24 Vullaby (Energy Symbol Pattern) #138Common $0.19 Vullaby (Master Ball Pattern) #63Common $2.27 Vullaby (Poke Ball Pattern) #63Common $0.46 Vullaby - 144/086 #144Illustration Rare $10.30 Vullaby - 144/086 #144Art Rare $4.75 Vullaby (Master Ball Pattern) #63Common $2.27 Vullaby - 063/086 (Master Ball Pattern) #63Common $1.92 Vullaby #68Common $0.81 Vullaby #27Common $0.49 Vullaby (Poke Ball Pattern) #63Common $0.46 Vullaby #73Uncommon $0.45 Vullaby #72Common $0.35 Vullaby #92Common $0.26

Prices are updated based upon Pokemon Gym Challenge listings that sold on eBay and other marketplaces
Just getting one heads during a game can make the difference against the mirror match and, specially, against decks that might have a good pairing against Drapault but that struggle to put energies on the field, such as Lucario and Grachomp ex
There's one specific branch of horror I fully expect to see, though, and it's Lovecraft