Plants vs. Zombies Wiki
For the version in Plants vs. Zombies: Garden Warfare, see Chemist.

Mad Chemist is a premium super-rare zombie card in Plants vs. Zombies Heroes and a member of the PvZH Brainy Icon.pngBrainy class. He costs 4BrainPvZH.png to play and has 3StrengthPvZH.png/5HeartPvZH.png. He has the Gravestone trait, and his ability Conjures a random trick card when the first zombie trick is played every turn, starting from the turn he is revealed, unless the zombie hero has already 10 cards in their hand.



He is based on the Scientist variant in Plants vs. Zombies: Garden Warfare and Plants vs. Zombies: Garden Warfare 2 with a similar name. However, Mad Chemist's hairstyle differs from Chemist's in that the former sticks up, while the latter is spiked; instead, Mad Chemist's hairstyle is more similar to the "Perfect Hair" accessory for the Scientist in Plants vs. Zombies: Garden Warfare.

His description makes a play on two meanings of "mad": very angry (the meaning used in his description), and insane (the meaning used in his name).


  • Class: Brainy
  • Tribe: Science Zombie
  • Trait: Gravestone
  • Ability: When you play your first Trick each turn, Conjure a Trick.
  • Set - Rarity: Premium - Super-Rare

Card description

He's not so much "mad" as he is "mildly annoyed."

Update history

Update 1.16.10

  • Ability streamlined: When you play your first Trick each turn, add a random Trick your hand. → When you play your first Trick each turn, Conjure a Trick.

Update 1.26.3

  • Strength change: 2StrengthPvZH.png → 3StrengthPvZH.png
  • Health change: 3HeartPvZH.png → 4HeartPvZH.png

Update 1.30.4

  • Health change: 4HeartPvZH.png → 5HeartPvZH.png



Having average stats for a 4BrainPvZH.png zombie, Mad Chemist is not mainly used for combat, but for his rather useful and interesting ability; while it is luck-based, you have a good chance of obtaining tricks outside of your classes, which you will be able to surprise your opponent with. Mad Chemist also goes well with any deck, as long as it has a fair number of tricks.

To make use of Mad Chemist's ability well, you must play at least one trick per turn. This means that you will have to spend brains to activate his ability; while it doesn't matter if you do need to play the trick for your strategy, it is beneficial to spend as few brains as possible in any other case. Therefore, it is recommended to bring many cheap tricks into your deck, or use Zombie Yeti, who provides you a cheap trick in the name of Yeti Lunchbox at the end of every turn (assuming they survive). However, the latter is exclusive to Immorticia. Thinking Cap is also a good pair with him, as while it isn't very cheap, it is a trick that Conjures two cheap tricks, which is enough for the next two turns (assuming the superpowers Conjured aren't Iron Boarder, Ice Moon, and Teleportation Station). If you are playing as Super Brainz, Huge-Gigantacus, or Rustbolt, you can use Dr. Spacetime or Zombology Teacher respectively to reduce the cost of tricks to result in more free brains.

Protecting Mad Chemist is also vital, as he is only able to Conjure one trick per turn; this means that he has to survive for a few turns to be worthwhile. While many cards can improve his survivability, tricks are the preferred option as you can activate his ability as well. Examples include Vitamin Z, Healthy Treat, Rock Wall, and Escape through Time.

Since he is part of the science tribe, you can synergize him with Zombot Drone Engineer to increase his base strength, Gadget Scientist to perform a bonus attack, and Interdimensional Zombie to activate his ability when this zombie is revealed. As of Gravestone synergy, Super Brainz and Huge-Gigantacus can give Mad Chemist a small boost with Headstone Carver, and as for Professor Brainstorm, he has access to Grave Robber, who will get a small boost when Mad Chemist is revealed.


Mad Chemist isn't much of a threat in terms of stats, but his Conjuring ability is what makes him one. While you could confront him with a plant to destroy him, he will still be able to destroy most of them unless they do a bonus attack. Instead, play instant-kill or damaging cards to destroy, or at least weaken him. Grave Buster and Whack-a-Zombie are perfect examples for instant-kills, while two Berry Blasts are your best bet in terms of damaging cards.

Since Mad Chemist's ability is based on tricks, anti-trick cards (Black-Eyed Pea, Sportacus, Forget-Me-Nuts, Dark Matter Dragonfruit, Brainana) should work well against him too, although they won't be able to deal with him directly (minus with direct combat). Also, try to get rid of any Dr. Spacetimes and Zombology Teachers on the field, because your opponent will be able to spend fewer brains on tricks, and thus, prepare their bigger threats more easily.


Plants vs. Zombies Wiki has a gallery for Mad Chemist.
Mad Chemist HD.png
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Mad Chemist HD.png

In other languages

Language Name Description
United States of America English Mad Chemist
China Simplified Chinese 疯狂化学家
Traditional Chinese 瘋狂科學家
France French Chimiste fou
Germany German Verrückter Wissenschaftler
Italy Italian Chimico pazzo
Japan Japanese マッド化学者
South Korea Korean 미친 과학자
Brazil Brazilian Portuguese Químico Louco
Russia Russian Безумный химик
Spain Spanish Químico loco


  • Since update 1.14.13, Mad Chemist was glitched so that he can also give cards that cannot be seen normally by the user. Examples of such cards included the Bungee Plumber used in the tutorial and a 99-brain cost Blank Zombie that cannot be played (which is used as a filler card in early AI and a few Puzzle Party decks to deramp the difficulty).
  • If Final Mission is the first zombie trick played in that turn and the player chooses to destroy Mad Chemist, he will still activate his ability before being destroyed. The same also applies to Trick-or-Treater.
  • Prior to the Colossal Fossils update, tricks Conjured by Mad Chemist did not say they were in their statistics. This also happened with Eureka.
  • He was mentioned in the description of Gadget Scientist, who wishes that the Mad Chemist would stop copying his hairstyle.

See also

V · T · E Zombies in Plants vs. Zombies Heroes
PvZH Beastly Icon.png Beastly
Heroes Brain Freeze · Electric Boogaloo · The Smash · Immorticia
Common Skunk Punk · Pied Piper · Zookeeper · Dolphin Rider · Locust Swarm
Premium Dog Walker · Nibble · Snorkel Zombie · Yeti Lunchbox · Haunting Zombie · Loudmouth · B-flat
Galactic Total Eclipse · Alien Ooze · Surfer Zombie
Colossal Haunting Ghost
Triassic Goat · Vengeful Cyborg
Premium Squirrel Herder · Vimpire · Vitamin Z · Kangaroo Rider · Smashing Gargantuar
Galactic Biodome Botanist · Cosmic Yeti
Colossal Primordial Cheese Shover
Triassic Killer Whale
Premium Cat Lady · Zombie Yeti · Deep Sea Gargantuar · Maniacal Laugh
Galactic Cheese Cutter · Cyborg Zombie · Area 22
Colossal Extinction Event · Ancient Vimpire
Triassic Hunting Grounds
Premium Nurse Gargantuar · Octo Zombie · Zombot 1000
Galactic Interstellar Bounty Hunter · Supernova Gargantuar
Colossal Mondo Bronto
Triassic Gargantuar-Throwing Gargantuar
Event Cards Fraidy Cat · Secret Agent · Energy Drink Zombie · Synchronized Swimmer · Hover-Goat 3000 · Overstuffed Zombie · Sneezing Zombie · King of the Grill
Token Cards Zom-Bats
Superpowers Frozen Tundra · Slammin' Smackdown · Stayin' Alive · Witch's Familiar · Acid Rain · Evaporate · Galvanize
PvZH Brainy Icon.png Brainy
Heroes Super Brainz · Rustbolt · Professor Brainstorm · Immorticia · Huge-Gigantacus
Common Cardboard Robot Zombie · Paparazzi Zombie · Lurch for Lunch · Fun-Dead Raiser · Drum Major
Premium Chimney Sweep · Beam Me Up · Cell Phone Zombie · Pool Shark · Zombot Drone Engineer · Brain Vendor · Mountain Climber
Galactic Cryo-Brain · Medulla Nebula · Moonwalker
Colossal Copter Commando
Triassic Mustache Waxer · Pirate's Booty
Premium Gentleman Zombie · Kite Flyer · Gadget Scientist · Hail-a-Copter · Wizard Gargantuar
Galactic Cosmic Scientist · Triplication
Colossal Zom-Blob
Triassic Mustache Monument
Premium Electrician · Rocket Science · Mad Chemist · Portal Technician
Galactic Neutron Imp · Transformation Station · Wormhole Gatekeeper
Colossal Evolutionary Leap · Parasol Zombie
Triassic Duckstache
Premium Teleport · Shieldcrusher Viking · Trickster
Galactic Interdimensional Zombie · Teleportation Zombie
Colossal Gargantuar Mime
Triassic Zombot Dinotronic Mechasaur
Event Cards Leprechaun Imp · Regifting Zombie · Trick-or-Treater · Thinking Cap · Kitchen Sink Zombie · Bad Moon Rising
Token Cards Pot of Gold · Space Cadet · Zom-Bats
Superpowers Carried Away · Shrink Ray · Eureka · Witch's Familiar · Terror-Former 10,000 · Cut Down to Size · Summoning · Telepathy · Iron Boarder · Teleportation Station
PvZH Crazy Icon.png Crazy
Heroes Electric Boogaloo · Impfinity · Professor Brainstorm · Z-Mech
Basic Cards Backup Dancer · Bungee Plumber · Cuckoo Zombie · Disco Zombie · Flamenco Zombie
Premium Tennis Champ · Unlife of the Party · Conga Zombie · Newspaper Zombie · Cakesplosion · Orchestra Conductor · Foot Soldier Zombie
Galactic Loose Cannon · Meteor Z · Space Ninja
Colossal Mystery Egg · Sugary Treat
Triassic Trapper Territory
Premium Exploding Imp · Jester · Zombot's Wrath · The Chickening · Imp-Throwing Gargantuar
Galactic Final Mission · Cosmic Dancer
Colossal Gizzard Lizard
Triassic Disco Dance Floor
Premium Aerobics Instructor · Abracadaver · Fireworks Zombie · Disco-Tron 3000
Galactic Disco-Naut · Moon Base Z · Gas Giant
Colossal Quickdraw Con Man
Triassic Grave Robber · Zombie's Best Friend
Premium Barrel of Deadbeards · Valkyrie · Gargantuars' Feast
Galactic Quasar Wizard · Binary Stars
Colossal Tankylosaurus
Triassic Headhunter
Event Cards Exploding Fruitcake · Unexpected Gifts · Stupid Cupid · Frankentuar · Gargantuar-Throwing Imp · Hippity Hop Gargantuar
Token Cards Impfinity Clone · Captain Deadbeard
Superpowers Stayin' Alive · Triple Threat · Eureka · Missile Madness · Brute Strength · Dance Off · Electrobolt
PvZH Hearty Icon.png Hearty
Heroes Rustbolt · The Smash · Neptuna · Z-Mech
Common Baseball Zombie · Rolling Stone · Conehead · Team Mascot · Medic
Premium Arm Wrestler · Camel Crossing · Flag Zombie · Terrify · Trash Can Zombie · Buckethead · Ra Zombie
Galactic Cone Zone · Celestial Custodian · Screen Door Zombie
Colossal Healthy Treat · Zombie Middle Manager
Triassic Leftovers
Premium Sumo Wrestler · Zombie Coach · Monster Mash · Knight of the Living Dead · Rodeo Gargantuar
Galactic Escape through Time · Cosmic Sports Star
Colossal Primeval Yeti
Triassic Lost Colosseum
Premium Landscaper · Weed Spray · All-Star Zombie · Coffee Zombie
Galactic Black Hole · Genetic Experiment · Planetary Gladiator
Colossal Jurassic Fossilhead
Triassic Knockout · Turquoise Skull Zombie
Premium Zombie King · Undying Pharaoh · Wannabe Hero
Galactic Intergalactic Warlord · Zombot Battlecruiser 5000
Colossal Stompadon
Triassic Chum Champion
Event Cards Zombology Teacher · Gargologist · Turkey Rider · Going Viral · Bonus Track Buckethead · Defensive End
Token Cards Octo-Pet
Superpowers Shrink Ray · Slammin' Smackdown · Octo-Pult · Missile Madness · Heroic Health · Possessed · Rock Wall
PvZH Sneaky Icon.png Sneaky
Heroes Brain Freeze · Super Brainz · Impfinity · Neptuna · Huge-Gigantacus
Common Imp · Mini-Ninja · Smoke Bomb · Fishy Imp · Smelly Zombie
Premium Headstone Carver · Zombie Chicken · Hot Dog Imp · Swashbuckler Zombie · Backyard Bounce · Stealthy Imp · Firefighter
Galactic Graveyard · Ice Pirate · Frosty Mustache
Colossal Swabbie · Barrel of Barrels
Triassic Monkey Smuggler
Premium Imp Commander · Barrel Roller Zombie · Surprise Gargantuar · Walrus Rider · Zombot Stomp
Galactic Cosmic Imp · Space Pirate
Colossal Blowgun Imp
Triassic Buried Treasure
Premium Toxic Waste Imp · Line Dancing Zombie · Pogo Bouncer · Tomb Raiser Zombie
Galactic Ducky Tube Zombie · Dr. Spacetime · Laser Base Alpha
Colossal Cursed Gargolith
Triassic Excavator Zombie · Unthawed Viking
Premium Mixed-Up Gravedigger · Zombot Sharktronic Sub · Zombot Plank Walker
Galactic Space Cowboy · Cryo-Yeti
Colossal Zombot Aerostatic Gondola
Triassic Raiding Raptor
Event Cards Imposter · Fire Rooster · Imp-Throwing Imp · Captain Flameface · Zombie High Diver · Trapper Zombie
Token Cards Impfinity Clone · Octo-Pet
Superpowers Frozen Tundra · Carried Away · Triple Threat · Octo-Pult · Terror-Former 10,000 · In-Crypted · Super Stench · Dolphinado · Ice Moon
Tokens Zombie · Returned Octo Zombie
Superpowers Flick-a-Plant · Get Well · Motivate