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.)

Romantic Rendezvous

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.

Mountain

Ghost-Spider, Gwen Stacy

Menace (This creature can't be blocked except by two or more creatures.)
Whenever Ghost-Spider attacks, she deals X damage to defending player, where X is the number of attacking creatures.

Spider-Bot

Reach
When this creature enters, you may search your library for a basic land card, reveal it, then shuffle and put that card on top.

Electro's Bolt

Electro's Bolt deals 4 damage to target creature.
Mayhem {1}{R} (You may cast this card from your graveyard for {1}{R} if you discarded it this turn. Timing rules still apply.)

The Mary Janes

This spell costs {1} less to cast for each creature that attacked this turn.
Menace (This creature can't be blocked except by two or more creatures.)

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.

Rampaging Classmate

Whenever this creature attacks, it gets +1/+0 until end of turn for each other attacking creature.

Shocker, Unshakable

During your turn, Shocker has first strike.
Vibro-Shock Gauntlets — When Shocker enters, he deals 2 damage to target creature and 2 damage to that creature's controller.

Double Trouble

Double the power of each creature you control until end of turn.

Spider-Gwen, Free Spirit

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