Jack, the King of Ideas

+5: At the begginning of your end step create a token that's copy of Jack, the King of Ideas, except it's not legendary. Then untap target permanent.
0: You get an emblem with "At the begginning of your upkeep, three target players discard X cards. Where X is 17 minus number of counters on Jack.
-1: You lose 2 life and target player gain 2 life.