
Ether | Artifact | | {T}, Exile this artifact: Add {U}. When you next cast an instant or sorcery spell this turn, copy that spell. You may choose new targets for the copy. | Ben Wootten

The Lunar Whale | Legendary Artifact | Vehicle | Flying
You may look at the top card of your library any time.
As long as The Lunar Whale attacked this turn, you may play the top card of your library.
Crew 1 | Fiona Hsieh

Rook Turret | Artifact Creature | Construct | Flying
Whenever another artifact you control enters, you may draw a card. If you do, discard a card. | Thanh Tuấn

The Water Crystal | Legendary Artifact | | Blue spells you cast cost {1} less to cast.
If an opponent would mill one or more cards, they mill that many cards plus four instead.
{4}{U}{U}, {T}: Each opponent mills cards equal to the number of cards in your hand. | Pablo Mendoza