Snake

Snake is that scaly creature who bit and killed the awesome PWNer Honeyfern. Then the depressed butt Leafpool dumped a mouse stuffed with deathberries at the entrance to the snake's lair, which is a hole at the base of one of the giant badass cliffs surrounding the stone hollow, the home of the iPod-obsessed n00bs. Everyone who was a fan of Honey wants to slice open this murderer's throat.
This terrible creature has loads of brothers, sisters, sons, daughters, a mother, father, uncles, aunts, grandmother, grandfather, great-aunt, a mate, and so on, so watch out!
(Just wanted to say that this is a garter snake, they are not poisonous and could not harm a cat AT ALL. Maybe put a Cobra instead.)