Arvak, Cursed Ignition

When Arvak, Cursed Ignition enters the
battlefield, create a food token. It has "{2},
{t}, Sacrifice this artifact: you gain 3 life."
Whenever Arvak attacks, if you control no other
foods, you lose 2 life.
{2}, {t}: Sacrifice a food or creature: Target
creature gets -3/-3 until end of turn. Put a +1/+1
counter on Arvak.