Rahl of the Arkensword

+1: Add WUBRG.
-2: Put a +1/+1 counter on all creatures you control and a -1/-1 counter on all creatures your opponents control.
-15: You get an emblem that says "At the beginning of your upkeep draw two cards and gain 5 life. Your opponent's discard 2 cards and lose 5 life"