Trinket Mage

When Trinket Mage enters, you may search your library for an artifact card with mana value 1 or less, reveal that card, put it into your hand, then shuffle.

Merchant Scroll

Search your library for a blue instant card, reveal that card, put it into your hand, then shuffle.

Negate

Compulsive Research

Target player draws three cards. Then that player discards two cards unless they discard a land card.

Mirran Spy

Flying
Whenever you cast an artifact spell, you may untap target creature.

Spell Pierce

Counter target noncreature spell unless its controller pays {2}.

Unexplained Vision

Draw three cards.
Adamant — If at least three blue mana was spent to cast this spell, scry 3.

Betrayal

Enchant creature an opponent controls
Whenever enchanted creature becomes tapped, you draw a card.

Brainstorm

Draw three cards, then put two cards from your hand on top of your library in any order.

Island

Grip of Amnesia

Counter target spell unless its controller exiles all cards from their graveyard.
Draw a card.

Contact Other Plane

Roll a d20.
1—9 | Draw two cards.
10—19 | Scry 2, then draw two cards.
20 | Scry 3, then draw three cards.

Keep Safe

Counter target spell that targets a permanent you control.
Draw a card.

Battered Golem

Battered Golem doesn't untap during your untap step.
Whenever an artifact enters, you may untap Battered Golem.

Ornithopter

Golem Foundry

Whenever you cast an artifact spell, you may put a charge counter on Golem Foundry.
Remove three charge counters from Golem Foundry: Create a 3/3 colorless Golem artifact creature token.

Scatter Arc

Counter target noncreature spell.
Draw a card.

Retraction Helix

Until end of turn, target creature gains "{T}: Return target nonland permanent to its owner's hand."