Cyrus, the Showman

Shadow, Haste (This creature can block or be blocked
by only creatures with shadow)
At the beginning of each player's upkeep, that
player gains control of Cyrus, the Showman, and
you create a treasure token.
When this creature deals combat damage to a
player, you may sacrifice a permanent. If you
do, Goad Cyrus.
—
"Assassin? What an ugly term. I'm an entertainer!
The bloodshed is to keep them coming back!"