Lord Havelock Vetinari

Counts as Queen Marchesa
Deathtouch, haste
When Queen Marchesa enters the battlefield,
you become the monarch.
At the beginning of your upkeep, if an opponent
is the monarch, create a 1/1 black Assassin
creature token with deathtouch and haste.
"Don't let me detain you." —Lord Vetinari