It is simple, elegant, fair and consistent
Set Number 98 Language Legal Formats Brawl, Commander, Competitive Brawl, Historic, Legacy, Modern, Timeless, Vintage Not Legal Formats Alchemy, Pauper, Pioneer, Standard Rulings (3/19/2021) As Smallpox resolves, first each player loses 1 life at the same time

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So much so that we can't realistically use them when we're playtesting constructed decks
The majority of the deck consists of multi-colored legendary permanents to take full advantage of Amazing Spider-Man's effect
With the amount of work that goes into it to activate it, a board wipe usually turns it off