
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

Scorpion Sentinel | Artifact Creature | Robot Scorpion | As long as you control seven or more lands, this creature gets +3/+0. | HAISIRO

Valkyrie Aerial Unit | Artifact Creature | Construct | Affinity for artifacts (This spell costs {1} less to cast for each artifact you control.)
Flying
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.) | hippo

Omega, Heartless Evolution | Legendary Artifact Creature | Robot | Wave Cannon — When Omega enters, for each opponent, tap up to one target nonland permanent that opponent controls. Put X stun counters on each of those permanents and you gain X life, where X is the number of nonbasic lands you control. (If a permanent with a stun counter would become untapped, remove one from it instead.) | Josu Solano