Prowl is an alternate casting cost, which means its a different cost than the normal MV and not additional
This compares favorably to heavily played cards like Altar's Reap (8,728 in EDHREC.com) that are heavily played since you gain life and can sacrifice an artifact like a mana rock about to die in a foe's Vandalblast
Any time I buy something Pokemon -related as an adult, I always find I need to explain myself
Additionally, its once-per-game VSTAR Power, Starbirth, allows the player to search their deck for any two cards and put them directly into their hand
While the price tags on these serialized cards might look impressive, its important to note that only a single of the $1,500 Ragavans have sold on TCGPlayer
This doesnt mean that all subtypes are created equal, or even playable