Sol Ring

An Offer You Can't Refuse

Counter target noncreature spell. Its controller creates two Treasure tokens. (They're artifacts with "{T}, Sacrifice this token: Add one mana of any color.")

Arcane Denial

Counter target spell. Its controller may draw up to two cards at the beginning of the next turn's upkeep.
You draw a card at the beginning of the next turn's upkeep.

Unstoppable Plan

At the beginning of your end step, untap all nonland permanents you control.

Terror

Destroy target nonartifact, nonblack creature. It can't be regenerated.

Unwinding Clock

Untap all artifacts you control during each other player's untap step.

Araumi of the Dead Tide

{T}, Exile cards from your graveyard equal to the number of opponents you have: Target creature card in your graveyard gains encore until end of turn. The encore cost is equal to its mana cost. (Exile the creature card and pay its mana cost: For each opponent, create a token copy that attacks that opponent this turn if able. They gain haste. Sacrifice them at the beginning of the next end step. Activate only as a sorcery.)

Don't Have

Voracious Tome-Skimmer

Flying
Whenever you cast a spell during an opponent's turn, you may pay 1 life. If you do, draw a card.

Arcane Signet

{T}: Add one mana of any color in your commander's color identity.

Dimir Signet

Counterspell

Twilight Diviner

When this creature enters, surveil 2. (Look at the top two cards of your library, then put any number of them into your graveyard and the rest on top of your library in any order.)
Whenever one or more other creatures you control enter, if they entered or were cast from a graveyard, create a token that's a copy of one of them. This ability triggers only once each turn.