Bothun, the Howling Darkness

Deathtouch, Lifelink
Bothun, the Howling Darkness cannot attack or
block unless you lost life this turn.
Whenever a creature dies you may pay 3 life, if
you do return it to the battlefield under your
control and all creatures get -2/-2 until end of turn.
{b}{b}, Pay 2 life, Sacrifice a creature: Gain 4 life
and draw a card.