
Web-Shooters | Artifact | Equipment | Equipped creature gets +1/+1 and has reach and "Whenever this creature attacks, tap target creature an opponent controls."
Equip {2} ({2}: Attach to target creature you control. Equip only as a sorcery.) | Camille Alquier

Costume Closet | Artifact | | This artifact enters with two +1/+1 counters on it.
{T}: Move a +1/+1 counter from this artifact onto target creature you control. Activate only as a sorcery.
Whenever a modified creature you control leaves the battlefield, put a +1/+1 counter on this artifact. (Equipment, Auras you control, and counters are modifications.) | Ben Maier

Flying Octobot | Artifact Creature | Robot Villain | Flying
Whenever another Villain you control enters, put a +1/+1 counter on this creature. This ability triggers only once each turn. | Jonathan Wayshak

Spider-Slayer, Hatred Honed | Legendary Artifact Creature | Human Villain | Whenever Spider-Slayer deals damage to a Spider, destroy that creature.
{6}, Exile this card from your graveyard: Create two tapped 1/1 colorless Robot artifact creature tokens with flying. | Warren Mahy