Marcus the Conspirator

Eminence - Whenever creature is put into a graveyard by an Assassin you control, if Marcus the Conspirator is in the command zone or on the battlefield, draw a card.
Creatures you control have dethrone.
Tap seven untapped Assassins you control: Gain control of each creature target player controls until end of turn. Untap those creatures. They gain haste until end of turn.