Skullscry Warlock

Whenever a creature dies scry 2 and draw .
{0}: sacrifice an artifact, all creatures get -1/-1
until end of turn
{1}:sacrifice an enchantment create X 0/1
victim tokens where X is the cards converted
mana cost
{1}: sacrifice a creature, discard a card than
draw 2 cards
{10}{b}{b}:gain 1 life for every card in all graveyards.