Delkdrak Broodspinner

Other spiders you control have hexproof.
As long as you control five or more Spiders, Spiders you control can't be blocked except by artifact creatures.
As long as you control ten or more Spiders, Spiders you control have Infect (This creature deals damage to creatures in the form of -1/-1 counters and to players in the form of poison counters.)