Jack,Knighted bard

+2: sacrifice an artifact,if the artifact you sacrificed was a creature put a +1/-1 counter on target creature or each player loses 1 life.
-3: you may sacrifice a creature if you do you may discard a card then draw a card or put a +2/-2 counter on target creature.
-16: each player sacrifices all creatures they control,each player loses life double to the amount of creatures they sacrificed this way.