Universal Automaton

Changeling (This card is every creature type.)

Didn't Say Please

Counter target spell. Its controller mills three cards.

Thought Scour

Target player mills two cards.
Draw a card.

Persistent Petitioners

{1}, {T}: Target player mills a card. (They put the top card of their library into their graveyard.)
Tap four untapped Advisors you control: Target player mills twelve cards.
A deck can have any number of cards named Persistent Petitioners.

Counterspell

Island

Tome Scour

Mind Sculpt

Mothdust Changeling

Changeling (This card is every creature type.)
Tap an untapped creature you control: Mothdust Changeling gains flying until end of turn.