Spider
"All spiders can block flyers.
All spiders have some green in them.
Unless they are nifty artifact mecha-spiders.
All spiders have toughness greater than their power. Their power is at least 1.
All spiders should cost five or less. And if it's cost is five, the spider should be ridiculous. Four, really, seems like it should be market price for a solid spider, and three for a pretty good one. But definitely not more than five.
All spiders will make the cut in your sealed deck, assuming you are playing Green.
All spiders have the creature type - spider."

-jon becker
Whiplash Spider