mtg spider man collector booster box Strixhaven Magic: The Gathering Marvel's Spider-Man Collector Booster Box – 12 Packs, Factory Sealed Marvel Collector Cards Collector Boosters gather all the coolest cards and foil treatments in one place Magic: The Gathering Spider-Man Collector

While the life loss and gain synergy provides incremental advantage, there are better cards with similar effects, such as Zulaport Cutthroat or Blood Artist, which have lower mana costs and provide more immediate impact

One Persistent Petitioners can mill a player one card

Also, a shout out to Griselbrand that costs eight for a 7/7 flyer with lifelink that can swap 7 life for 7 cards and was so broken in older formats like Legacy that reanimated him, or cast him with no additional costs that he was really a one-dork format for much of its run and answers like Liliana of the Veil rose to the top

Lesser powerful versions of this effect like Nighthowler and Wight of Precinct Six are also good, but since they only count creatures, they are usually much smaller than the Aberration