Snow Peashooter
A plant from the Plants vs. Zombies franchise that shoots slowing peas at Zombies which can decelerate the movement speed of the affected Zombie, but also deals the same exact damage as a Peashooter.
"One Snow Peashooter on every lane + 2 Repeaters worth on 2 coluums = The best way to beating the easy levels in Plants vs. Zombies."