Spiders are a creature type primarily associated with green and black, high toughness, reach, and webs of creature tokens. Spider decks naturally excel at controlling combat before slowly trapping opponents beneath an increasingly crowded board.
Spider Spawning turns creatures in your graveyard into an army, while Rotwidow Pack converts Spiders into direct life loss. Marvel's Spider-Man also expanded Magic's collection of actual Spider creatures alongside its many Spider-Heroes.
