Grow Extra Arms

This spell costs {1} less to cast if it targets a Spider.
Target creature gets +4/+4 until end of turn.

Ezekiel Sims, Spider-Totem

Reach
At the beginning of combat on your turn, target Spider you control gets +2/+2 until end of turn.

Angry Rabble

Trample
Whenever you cast a spell with mana value 4 or greater, this creature deals 1 damage to each opponent.
{5}{R}: Put two +1/+1 counters on this creature. Activate only as a sorcery.

Spider-Gwen, Free Spirit

Reach
Whenever Spider-Gwen becomes tapped, you may discard a card. If you do, draw a card.

Forest

Web-Warriors

When this creature enters, put a +1/+1 counter on each other creature you control.

Spider-Man, Web-Slinger

Web-slinging {W} (You may cast this spell for {W} if you also return a tapped creature you control to its owner's hand.)

Thwip!

Target creature gets +2/+2 and gains flying until end of turn. If it's a Spider, you gain 2 life.

Spider-Punk

Riot (This creature enters with your choice of a +1/+1 counter or haste.)
Other Spiders you control have riot.
Spells and abilities can't be countered.
Damage can't be prevented.

Plains

Rhino's Rampage

Target creature you control gets +1/+0 until end of turn. It fights target creature an opponent controls. When excess damage is dealt to the creature an opponent controls this way, destroy up to one target noncreature artifact with mana value 3 or less.

Spider-Islanders

Mayhem {1}{R} (You may cast this card from your graveyard for {1}{R} if you discarded it this turn. Timing rules still apply.)

Wisecrack

Target creature deals damage equal to its power to itself. If that creature is attacking, Wisecrack deals 2 damage to that creature's controller.

Stegron the Dinosaur Man

Menace (This creature can't be blocked except by two or more creatures.)
Dinosaur Formula — {1}{R}, Discard this card: Until end of turn, target creature you control gets +3/+1 and becomes a Dinosaur in addition to its other types.

Subway Train

When this Vehicle enters, you may pay {G}. If you do, search your library for a basic land card, reveal it, put it into your hand, then shuffle.
Crew 2 (Tap any number of creatures you control with total power 2 or more: This Vehicle becomes an artifact creature until end of turn.)

Kraven's Cats

{2}{G}: This creature gets +2/+2 until end of turn. Activate only once each turn.

Savage Mansion

This land enters tapped.
{T}: Add {R} or {G}.
{4}, {T}: Surveil 1. (Look at the top card of your library. You may put it into your graveyard.)

Web Up

When this enchantment enters, exile target nonland permanent an opponent controls until this enchantment leaves the battlefield.

Flash Thompson, Spider-Fan

Flash
When Flash Thompson enters, choose one or both —
• Heckle — Tap target creature.
• Hero Worship — Untap target creature.

Kapow!

Put a +1/+1 counter on target creature you control. It fights target creature an opponent controls. (Each deals damage equal to its power to the other.)

Terrific Team-Up

This spell costs {2} less to cast if you control a permanent with mana value 4 or greater.
One or two target creatures you control each get +1/+0 until end of turn. They each deal damage equal to their power to target creature an opponent controls.

Silver Sable, Mercenary Leader

When Silver Sable enters, put a +1/+1 counter on another target creature.
Whenever Silver Sable attacks, target modified creature you control gains lifelink until end of turn. (Equipment, Auras you control, and counters are modifications.)

Lurking Lizards

Trample
Whenever you cast a spell with mana value 4 or greater, put a +1/+1 counter on this creature.

Vibrant Cityscape

{T}, Sacrifice this land: Search your library for a basic land card, put it onto the battlefield tapped, then shuffle.

Mountain

Guy in the Chair

{T}: Add one mana of any color.
Web Support — {2}{G}, {T}: Put a +1/+1 counter on target Spider. Activate only as a sorcery.

Rhino, Barreling Brute

Vigilance, trample, haste
Whenever Rhino attacks, if you've cast a spell with mana value 4 or greater this turn, draw a card.

Ultimate Spider-Man

First strike, haste
Camouflage — {2}: Put a +1/+1 counter on Ultimate Spider-Man. He gains hexproof and becomes colorless until end of turn.
Whenever you attack, double the number of each kind of counter on each Spider and legendary creature you control.

Miles Morales

When Miles Morales enters, put a +1/+1 counter on each of up to two target creatures.
{3}{R}{G}{W}: Transform Miles Morales. Activate only as a sorcery.

Miles Morales // Ultimate Spider-Man

Raging Goblinoids

Haste
Mayhem {2}{R} (You may cast this card from your graveyard for {2}{R} if you discarded it this turn. Timing rules still apply.)

Daily Bugle Reporters

When this creature enters, choose one —
• Puff Piece — Put a +1/+1 counter on each of up to two target creatures.
• Investigative Journalism — Return target creature card with mana value 2 or less from your graveyard to your hand.

Steel Wrecking Ball

When this artifact enters, it deals 5 damage to target creature.
{1}{R}, Discard this card: Destroy target artifact.

Starling, Aerial Ally

Flying
When Starling enters, another target creature you control gains flying until end of turn.

Superior Foes of Spider-Man

Trample
Whenever you cast a spell with mana value 4 or greater, you may exile the top card of your library. If you do, you may play that card until you exile another card with this creature.

Mary Jane Watson

Whenever a Spider you control enters, draw a card. This ability triggers only once each turn.

Scarlet Spider, Ben Reilly

Web-slinging {R}{G} (You may cast this spell for {R}{G} if you also return a tapped creature you control to its owner's hand.)
Trample
Sensational Save — If Scarlet Spider was cast using web-slinging, he enters with X +1/+1 counters on him, where X is the mana value of the returned creature.

Pictures of Spider-Man

When this artifact enters, look at the top five cards of your library. You may reveal up to two creature cards from among them and put them into your hand. Put the rest on the bottom of your library in a random order.
{1}, {T}, Sacrifice this artifact: Create a Treasure token. (It's an artifact with "{T}, Sacrifice this token: Add one mana of any color.")

Araña, Heart of the Spider

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.)