West, Prince of the Profaned

Deathtouch.
Monarch— If you are monarch at the beginning of your next upkeep, create 2/2 black zombie tokens equal to the cards drawn since your last turn, with “This creature has persist.”
Eminence— Whenever a spell you control would generate tokens, make twice as many.
{b}{t} Exhaust— Put an exhaustion counter on West, Prince of the Profaned, search your library for a black spell or an artifact. Whenever your exhaustion counters exceed 5, transform West, Prince of the Profaned.