({4} magic symbol) ({U} magic symbol) ({U} magic symbol) at most available.
Steps
Cast
Kitsune's Technique by paying its mana cost, causing an opponent to mill half their library, rounded up.
Activate
Consuming Aberration by tapping it, causing the opponent to mill cards equal to the cards in opponents' graveyards, milling the remainder of their library.
Notes
If able, you can instead cast
Kitsune's Technique for its sneak cost, reducing the needed mana by ({3} magic symbol) ({U} magic symbol) .