So in this case, if you have four Stormbreakers already, then you only need to pay one mana to go infinite, since Sprout Swarm creates a token, and you'll get four new Stormbreakers from the first casting
He is certainly not unplayable, but stopping life gain is not that big an impact on the game, paying two life and two mana for an extra card is nowhere near as good as Underworld Connections, and that leaves us needing to consistently get the body to make him worth it
Head of Project Purity, James abandoned the mission to bring clean water to the Capital Wasteland after the death of his wife during childbirth, taking their newborn and bartering for entry into Vault 101, before mysteriously breaking out of the Vault two decades later and kicking off the game's campaign
Having three known cards on the bottom of your library is less immediately powerful than some scry or reordering at the top but it offers far more ongoing information
The rogues deck, dubbed Sneak Attack, has a subtheme of milling opponents with the addition of cards like mill all-star and classic Oona, Queen of the Fae