Yovroksis, Form of Famine

Transcendent (This creature can only be blocked
by other creatures with transcendent)
At the beginning of your upkeep, put a -1/-1
counter on target creature. If no opponents
control any creatures, put a -1/-1 counter on
target creature you control. If there are no
creatures on the battlefield besides Yovroksis, it
deals 1 damage to you.