This zombie can be very dangerous to the plant hero for the relatively low cost of 3 brains. It is best used in lanes unoccupied with plants because of his Anti-Hero trait, where he can attack the hero for 6 damage instead of 2. Cards such as Backyard Bounce, Smoke Bomb, or Pogo Bouncer can help accompany this zombie to ensure he can attack the plant hero directly.
As Template:PvZHLink, this with Carried Away can allow the player to do 12 damage to the plant hero in one turn. However, you should only do this if something blocks the Stealthy Imp's way, or if the plant hero is at or below 12 health. However, the plant hero may block the attack.
Against
While dangerous, this zombie doesn't pose much threat on him own due to his low stats. Planting a plant with 2 or more can take him out with no problems. Because of this the zombie hero will rarely play him on his own, so expect this to be used in conjunction with Smoke Bomb or Backyard Bounce. To counter these, plants with Team-Up can minimize the threat from bouncing tricks, and covering as many lanes as possible will lessen the effectiveness of moving this zombie. If you have no option but to leave a lane uncovered, try to make him so its a lane close to the right side of the lawn.