IMPprove

Overview
This is a strong zombie if it can survive. Due to it being a legendary, it is hard to amass large amounts of it, so be careful when you place it.

With
Use this zombie with care, because it has only one health and one strength. Its cost is high for its stats, so protect it at all costs. Use boosting tricks to help it survive. If it can survive, it will be very dangerous. If it gets Frenzy, try using Gadget Scientist to make it do bonus attacks. Note that it can also get Team-Up, Freeze, and plant abilities (such as Doubled Mint's.) It also synergizes with Toxic Waste Imp and Imp Commander.

Against
Use Squash, Shamrocket, or Lawnmower if it gets too powerful. Use damaging tricks to destroy it early. If your opponent uses Teleport, try to get it on the next turn. You could also play an equally dangerous plant (like Doubled Mint) or The Great Zucchini. Try also using Sporetacus, as you opponent will most likely boost its stats.

Trivia

 * It is the only zombie that can have Team-Up or Freeze.
 * It is the cheapest legendary, tied with Doubled Mint and Barrel of Deadbeards.
 * It can, theoretically, have every trait and ability.