Id recommend taking your time to think about each card as you build your deck so you dont get tripped up by these technicalities
Like most Magic: The Gathering cards, the value of Prowl, Stoic Strategist // Prowl, Pursuit Vehicle depends on a few consistent factors: its rarity, the printing and finish (regular or foil), its physical condition, and the set it was printed in (Transformers)
Whenever you cast a noncreature spell with mana value 3 or greater, draw a card
But Sivitri is a seven-mana card that's merely a 6/4 with no additional effect
Beifong's Bounty Hunters Dai Li Agents Deathless Knight Dreg Mangler Earth Village Ruffians Mournwillow Nissa of Shadowed Boughs Pippin, Warden of Isengard Ragnarok, Divine Deliverance Skullbriar, the Walking Grave The Gitrog, Ravenous Ride Tyvar, Jubilant Brawler