Boom-Boom Berries

Boom-Boom Berries is a plant obtained in Plants Vs Zombies Heroes. It has a cost of 3, an attack of 2 and a health of 3. It also has the ability to deal 1 dammage to every zombie on the field, when it attacks (This does NOT include the zombie hero). The plant has no rarity or class, thats up to YOU to deside.

What do you guys think of my first plant? Is it too strong, too weak? Please tell me what you think down below.