Chompzilla is a plant hero in Plants vs. Zombies Heroes and the leader of the Mega-Grow and Solar classes. Her signature superpower is Devour, which instantly destroys a zombie with the lowest health on the field. If there are 2 or more zombies with the lowest health, Chompzilla can decide which zombie to destroy.
Her name is a portmanteau of "Chomper," the Plants vs. Zombies plant she is based on, and "Godzilla," referring to her size and destructive attitude.
Chompzilla's tentacles may either be based on Naval Piranha from the Yoshi series, or Biollante, a plant/human/dinosaur hybrid monster featured in the movie Godzilla vs. Biollante who shares many characteristics with Chompzilla, such as gender, appearance, and powers.
The name of Chompzilla's first strategy deck is a pun on War and Peace, a novel written by the Russian author Leo Tolstoy.
Chompzilla is always hungry for more Zombies to destroy with her Solar Tricks. Healing effect helps her stay alive while the Zombies keep dying.
With
Chompzilla's Mega-Grow and Solar classes allow her to generate lots of sun early on, then boost plants to overwhelm the opponent, especially with plants like Sunflower and Twin Sunflower as it will put the zombie hero in a dilemma; if they keep them alive, Chompzilla will get more sun to use on higher costing plants and tricks. If they put a zombie in front of them, they are most likely going to be destroyed. If they are threatened by zombies, destroy them instantly, boost their stats to make them survive the hit, or at least fight back harder before being destroyed.
Solar plants benefit greatly from playing Mega-Grow cards because many of them have useful traits and abilities, like Strikethrough, healing, and instant destruction. With Chompzilla boosting their stats and making them do bonus attacks, they become more devastating against the opponent. On the other hand, Mega-Grow plants don't synergize with Solar cards very much, with the exception of healing cards like Geyser or 2nd-Best Taco of All Time, and are pretty independent of each other.
Chompzilla's advantage over other Solar heroes when using a healing deck is that she can make her Venus Flytraps generally much stronger by using Fertilize, or by using Plant Food to give them a smaller boost, but do damage and heal her instantly. She also has access to Geyser for some cheap mass-healing.
Chompzilla's weakness, however, is her lack of Amphibious plants. To prevent zombies from setting up in aquatic lanes, she can instantly destroy any possible threat with Whack-a-Zombie, Squash, Three-Headed Chomper, or Devour. She can also move them with Sweet Potato, Sweet Pea, Banana Peel, or Whipvine, because she is a Mega-Grow hero too.
Against
Chompzilla has a deadly arsenal of Mega-Grow plants that can take you down in a few hits and Solar plants that can be very annoying to handle. Use Rocket Science, Cut Down to Size, or Deadly zombies to deal with her plants. Sending out threats in aquatic lanes is a good way to take a big chunk of Chompzilla's health and provide a distraction for a more powerful zombie somewhere else.
Try to swarm the field, as Chompzilla can easily pick zombies off if left alone. If you cannot swarm her, then try using high-damage cards to make Chompzilla's efforts to heal less effective.
War and Peas
This deck is Chompzilla's pea deck. Chompzilla can set up early with Pea Pods and Sunflowers, the latter allowing her main defenses to be set up earlier. Once she generates enough sun, she can either unleash several pea plants powered up from Torchwood and The Podfather, or give all plants in her hand a head start with Onion Rings and boost them even further with The Red Plant-It.
Rocket Science and Deadly zombies punish plants that have grown too much, while preventing Chompzilla from amassing cards in her hand shuts down Onion Rings. Total Eclipse is another good counter, as it can be played to either prevent any Sunflowers from being played early on, or replace any Red Plant-Its on the field.
Use Sunflower to put Podfather on the mean streets as soon as possible. Then unleash his gang of Peas so they can teach the Zombies a lesson they won't forget.
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Bonus Attack Smackdown
One good attack deserves another. Use Coffee Grounds to give Double Strike to Cosmoss, Captain Cucumber, and Moonbean. Finish things off by playing The Red Plant-It with your Banasaurus Rex!
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Victory Strike
Blast through even the toughest defenses with an endless army of Strikethrough Plants. Buff them with Lily of the Valley and Grow-Shroom, then finish things off with The Red Plant-It!
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Cukes of Hazard
Fill your hand with cards from Captain Cucumber, so you can keep the opponent on lockdown. If things get out of hand, clear the board with a Tactical Cuke.
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Hyper-Aggro Hyperdrive
30 Plants that cost 1 and 2 unleash a hyper-aggressive offense. Play Evolutions on Fusion Plants for a powerful combo. Then punch past the final Zombies with Sun Strike!
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Gallery
Plants vs. Zombies Wiki has a gallery for Chompzilla.
Even though her signature superpower is called "Devour," she actually does not eat the zombie, but only bites it instead.
This is the second time "War and Peas" is mentioned in the Plants vs. Zombies series. The first is in Plants vs. Zombies, where a book titled "War and Peas" can be seen in Crazy Dave's Twiddydinkies on what appears to be a green and white box.
According to an animated trailer for Plants vs. Zombies Heroes, Chompzilla owns a red toothbrush.
She and Dr. Zomboss are the only characters in the series shown to use a toothbrush.
Mega-Grow and 
Solar classes. Her signature superpower is Devour, which instantly destroys a zombie with the lowest health on the field. If there are 2 or more zombies with the lowest health, Chompzilla can decide which zombie to destroy.
Mega-Grow, 
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Strikethrough, healing, and instant destruction. With Chompzilla boosting their stats and making them do bonus attacks, they become more devastating against the opponent. On the other hand, Mega-Grow plants don't synergize with Solar cards very much, with the exception of healing cards like Geyser or 2nd-Best Taco of All Time, and are pretty independent of each other.
Deadly zombies to deal with her plants. Sending out threats in aquatic lanes is a good way to take a big chunk of Chompzilla's health and provide a distraction for a more powerful zombie somewhere else.
Kabloom
Mega-Grow
Smarty
Solar
