Grasp of Phantoms

Put target creature on top of its owner's library.
Flashback {7}{U} (You may cast this card from your graveyard for its flashback cost. Then exile it.)

Griptide

Put target creature on top of its owner's library.

Deranged Assistant

{T}, Mill a card: Add {C}. (To mill a card, put the top card of your library into your graveyard.)

Sweep Away

Return target creature to its owner's hand. If that creature is attacking, you may put it on top of its owner's library instead.

Temporal Eddy

Put target creature or land on top of its owner's library.

Forced Retreat

Rootwater Mystic

{1}{U}: Look at the top card of target player's library.

Ghoulcaller's Bell

Fall from Favor

Enchant creature
When Fall from Favor enters, tap enchanted creature and you become the monarch.
Enchanted creature doesn't untap during its controller's untap step unless that player is the monarch.

Whisk Away

Put target attacking or blocking creature on top of its owner's library.

Memory Lapse

Counter target spell. If that spell is countered this way, put it on top of its owner's library instead of into that player's graveyard.

Wizened Snitches

Flying
Players play with the top card of their libraries revealed.

Gone Missing

Put target permanent on top of its owner's library.
Investigate. (Create a Clue token. It's an artifact with "{2}, Sacrifice this artifact: Draw a card.")

Drowner Initiate

Whenever a player casts a blue spell, you may pay {1}. If you do, target player mills two cards.

Jace's Erasure

Whenever you draw a card, you may have target player mill a card.

Fade Away

For each creature, its controller sacrifices a permanent of their choice unless they pay {1}.

Screeching Sliver

All Slivers have "{T}: Target player mills a card."

Merfolk Mesmerist

Run Aground

Put target artifact or creature on top of its owner's library.

Whirlpool Whelm

Clash with an opponent, then return target creature to its owner's hand. If you win, you may put that creature on top of its owner's library instead. (Each clashing player reveals the top card of their library, then puts that card on the top or bottom. A player wins if their card had a higher mana value.)

Consign to Dream

Return target permanent to its owner's hand. If that permanent is red or green, put it on top of its owner's library instead.

Repel

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.

Time Ebb

Vedalken Dismisser

When Vedalken Dismisser enters, put target creature on top of its owner's library.

Winds of Rebuke

Return target nonland permanent to its owner's hand. Each player mills two cards.