Apocalyptic Pandemic

Apocalyptic Pandemic cannot be countered and
it must be cast from your hand.
All nonblack creatures get -2/-2 and all black
creatures you control gain fear and infect until
end of turn.
Target opponent sacrifices 2 creatures. You gain
life equal to the combined toughness of all
creaures that died this turn.
Epic (For the rest of the game, you can't cast spells.
At the beginning of each of your upkeeps, copy this
spell except for its epic ability.)