Gamble With The Raven Queen

Roll a d20,
1-5, target creatures gains a -1/-2 counter
6-12, target creature gains a +1/+1 counter
13-17, target creature gains a +2/+2 counter
18-20, target creature dies
"Only the foolish make a bet with the goddess of death" - Fornhild Briarheart before sitting down to "play a game" with the Raven Queen.