Flying (This creature can't be blocked except by creatures with flying or reach.),
deathtouch (Any amount of damage this deals to a creature is enough to destroy it.)
Whenever a player sacrifices a nontoken creature, create a 1/1 black Insect creature token with
flying (This creature can't be blocked except by creatures with flying or reach.).
Whenever an Insect, Leech, Slug, or Worm you control attacks, defending player loses 1 life and you gain 1 life.