Tamsin, the Dreadlich

Whenever Tamsin, the Dreadlich enters the battlefield, each other creature gets -3/-3 until
end of turn. Then draw three cards.
At the beginning of your upkeep, you lose one
life and create a 1/1 red devil creature token.
Pay 2 Life, {b}{b}, {t}: Draw two cards.
"You know nothing of death, allow me to teach you."