Sinuous Vermin is a common Creature — Rat Horror card from Treasure Chest (PZ2), collector number 65773.
{3}{B}{B}: Monstrosity 3. (If this creature isn't monstrous, put three +1/+1 counters on it and it becomes monstrous.) As long as this creature is monstrous, it has menace. (It can't be blocked except by two or more creatures.)