
Biorganic Carapace | Artifact | Equipment | When this Equipment enters, attach it to target creature you control.
Equipped creature gets +2/+2 and has "Whenever this creature deals combat damage to a player, draw a card for each modified creature you control." (Equipment, Auras you control, and counters are modifications.)
Equip {2} | Randy Gallegos

Spider-Woman, Stunning Savior | Legendary Creature | Spider Human Hero | Flying
Venom Blast — Artifacts and creatures your opponents control enter tapped. | Mirko Failoni

The Spot, Living Portal | Legendary Creature | Human Scientist Villain | When The Spot enters, exile up to one target nonland permanent and up to one target nonland permanent card from a graveyard.
When The Spot dies, put him on the bottom of his owner's library. If you do, return the exiled cards to their owners' hands. | Andreas Zafiratos

Araña, Heart of the Spider | Legendary Creature | Spider Human Hero | Whenever you attack, put a +1/+1 counter on target attacking creature.
Whenever a modified creature you control deals combat damage to a player, exile the top card of your library. You may play that card this turn. (Equipment, Auras you control, and counters are modifications.) | Alexander Mokhov

Silk, Web Weaver | Legendary Creature | Spider Human Hero | Web-slinging {1}{G}{W} (You may cast this spell for {1}{G}{W} if you also return a tapped creature you control to its owner's hand.)
Whenever you cast a creature spell, create a 1/1 green and white Human Citizen creature token.
{3}{G}{W}: Creatures you control get +2/+2 and gain vigilance until end of turn. | Dmitry Burmak

Mary Jane Watson | Legendary Creature | Human Performer | Whenever a Spider you control enters, draw a card. This ability triggers only once each turn. | Inkognit