Upgrain

Upgrain is a plant introduced in ??. His main function is to upgrade plants he is planted on. In Plants Vs. Zombies 2, he can be unlocked for $4.99.

Origins
His name is a portmanteau of "upgrade" and grain. His appearance resembles Upgrade from the Ben 10 franchise, as both are mechanical life forms that can merge with certain materials, and explains the "upgrade" part of his name, and grain, the plant he is based on.

Overview
Everytime he is planted on a plant, upgrain will increase a certain ability in that plant. He is vulnerable to E.M. Peach, as the latter can unleash electromagnetic waves, which can damage upgrain.

Plants affected
TBA

Trivia

 * He was mostly inspired by Upgrade from the Ben 10 franchise.
 * In fact, his costume alludes to this.