Plants Versus Zombies: Stealth Chomper

This is my first standalone plant. Primarily an idea for PvZ garden Warfare, however, there is a TD version of it.

TD version
Has nearly identical stats as a normal chomper, but turns transparent whenever it's not attacking or digesting zombies. While transparent, zombies will ignore it. This effectively makes it immune to ranged attacks. It turns solid only to attack zombies and this makes it vulnerable.

Appearance
It has black camoflauge when completely visible and is clear and 60% transparent when invisible.

Plant food effect
Turns visible and does the same the a normal chomper would do.

Almanac entry
Stealth Chomper.

Swallows zombies whole and turns invisible to avoid ranged attacks.

Damage: Massive

Range: very short

Special: Long delay between chomps

Special: Turns invisible when it's not digesting or attacking. While invisible, zombies ignore it and ranged attacks fly right past it.

Cost: 200

Recharge: fast

''The Stealth chomper is always happy to do good, but he wishes somonee would give him credit every once and a while. It's like the others don't even know he's there.''

Garden Warfare Version
Is completely silent and turns invisible after 10 seconds of not attacking in any way. It's not completely invisible when it turns invisible though. It's clear and it's 60% transparent. It turns visible again if any of the following happens:

1# It's attacked.

2# It uses chomp.

3# It swallows a zombie.

4# It uses any goop.

5# It Burrows.

Please note that it can plant spikeweedss and plants without turning visible.

Attacks
Stealthy chomp: A typical chomp attack only renamed. If an enemy is swallowed, the stealth chomper will stay visible for the duration it takes to digest the target and will not enter the 10 second stealth cooldown until after the target is digested.

Spikeweeds: A standard spikeweed.

Burrow: A typical burrow.

Black goop: Black goop allows the chomper to zoom-in 1.5X to launch goop at zombies and the goops lasts 20% longer. The downside is that Black goops takes 33% longer to recharge.

Downside
The downside to using the stealth chomper is that you only get 125 health instead of the 150 a chomper normally gets and it is 10% slower than an average chomper.

Upgrades
Padded leaves: Silent pads on the leaves allow the stealth chomper to walk faster undetected.

Relaxed digestion: The chomper's silence and calmness allows it to digest prey faster.

Improved camouflage: Better mimicking skin allows it to turn invisible faster. (7.5 seconds.)

Feedback would be appreciated.