Eidolon of the Swarm

At the beginning of your upkeep, if you control
the most creatures, create a 1/1 black Insect
creature token with flying and haste.
Swarm {b} (Whenever a creature token comes into
play under your control, you may pay this cards
Swarm cost to put a -1/-1 counter on target creature.
If a creature would die this way, each opponent
loses 1 life.)
A slight chance of death and decay. -Eidolon