Jet Ring

Creatures you control have deathtouch.
Whenever an opponent loses life from
noncombat damage, they lose life equal to that
number plus one.
{t}: Add {b}{b}. Each opponent loses 1 life.
{3}{b}{t}: Create a 2/2 black Demon with
deathtouch and "When this creature dies, each
opponent loses 1 life and you gain 1 life."
{5}{b}{t}: Destroy target creature.