
Cryogen Relic | Artifact | | When this artifact enters or leaves the battlefield, draw a card.
{1}{U}, Sacrifice this artifact: Put a stun counter on up to one target tapped creature. (If a permanent with a stun counter would become untapped, remove one from it instead.) | Eelis Kyttanen

Illvoi Light Jammer | Artifact | Equipment | Flash
When this Equipment enters, attach it to target creature you control. That creature gains hexproof until end of turn. (It can't be the target of spells or abilities your opponents control.)
Equipped creature gets +1/+2.
Equip {3} | David Álvarez

Mechan Shieldmate | Artifact Creature | Robot Soldier | Defender
As long as an artifact entered the battlefield under your control this turn, this creature can attack as though it didn't have defender. | Daniel Ljunggren

Mechanozoa | Artifact Creature | Robot Jellyfish | When this creature enters, tap target artifact or creature an opponent controls and put a stun counter on it. (If a permanent with a stun counter would become untapped, remove one from it instead.)
Warp {2}{U} (You may cast this card from your hand for its warp cost. Exile this creature at the beginning of the next end step, then you may cast it from exile on a later turn.) | Daarken

Nanoform Sentinel | Artifact Creature | Robot | Whenever this creature becomes tapped, untap another target permanent. This ability triggers only once each turn. | Tianxing Xu

Selfcraft Mechan | Artifact Creature | Robot Artificer | When this creature enters, you may sacrifice an artifact. When you do, put a +1/+1 counter on target creature and draw a card. | Milivoj Ćeran