Peashooter: It's Sprite would be a Peashooter in a pot with little wheels, so it can drive around.
Neutral B: Pea Shoot
(Shoots a normal pea.)
Forward B: Snow Pea
(Becomes a Snow Pea then shoots a snow pea, that freezes the enemy for 1.5 seconds.)
Down B: Lava Floor
(Becomes a Fire Peashooter and thens shoots a fire pea at the ground, leaving a lava pool in there.)
Up B: Pot Jump
(Jumps up with the help of it's pot.)