Stefans 30th

+1: Each player puts the top three cards of their library into their graveyard. Then, Stefan ages a year. (He gets a birthday counter.)
-3: Target player puts the top X cards of their library into their graveyard, where X is the number of birthday counters on Stefan.
-7: You get an emblem with "At the beginning of your upkeep, target opponent puts the top 30 cards of their library into their graveyard."