Thimithe, Drifting Pillager

As an additional cost to cast Thimithe, Drifting Pillager, sacrifice two permanents
Flying, Menace, Deathtouch
At the beginning of each player's upkeep, that
player sacrifices two noncreature permanents if
they control less than five dragons.
I don't fight a war, or harm innocents because I want
to, but because I have no other choice. I pity those
who have fallen in my wake. Forgive me.