New Plant idea!

Nice idea, but I think it would be WAY to OP (SPECIALLY at that cost).

Just for a quick comparison:

Lightning Reed is a 2 cost 1/2 plant that doest splash damage for 1. 

This means that it can do AT MOST, 3 damage for 2 suns.

Snapdragon is a 4 cost 3/1 plant that does splash damage for 3.

This means that it can do AT MOST, 9 damage for 4 suns.

With your plant, you can do (potentially) 10 damage for 3 suns. (If you place it on the middle lane as you said).

If you (kinda) keep the format, it should do approximately 6 damage for 3 suns, not 10.

You would be doing more damage with your plant than with the Snapdragon, and with less suns.

Not a problem my friend.

I like your idea of a cheap complete board clear (Like a cheap version of the Shooting Starfruit), but I do think it should have some changes.

How about a 3 suns 1/3 with the same effect you said?

You would be doing 5 potential damage for just 3 suns.

Yeah, it would have to attack twice to kill a 2 health zombie, but consider this:

a) You can just play another one, and you would two pretty annoying plants to deal with.

b) You can make it do bonus attacks (Like with Plant Food or on the Coffee Grounds environment)