Advisor is a creature type appearing most often in black, blue, and white. Advisors are often small creatures with abilities that tax opponents, draw cards, or mill. Changelings count as Advisors, giving typal-framed decks extra bodies.
Persistent Petitioners anchors a ton of Advisor decks, since a deck can run any number of copies of it and tapping four untapped Advisors mills an opponent for twelve cards.
