Listed below are each of the characters unique zombie superpower.
Super Brainz - Carried Away:
Move a Zombie. Then it does a Bonus Attack.
The Smash - Slammin' Smackdown:
Destroy a Plant with 4 Attack or less.
Impfinity - Triple Threat:
Make two 1/1 Impfinity Clones with Amphibious in random lanes.
Rustbolt - Shrink Ray:
A Plant gets -3 Attack. Draw a card.
Electric Boogaloo - Stayin' Alive:
Do 3 damage to a Plant. Heal your Hero for 3.
Brain Freeze - Frozen Tundra:
Freeze ALL Plants on the Ground.
Professor Brainstorm - Eureka:
Add three random cards from the entire game to your hand.
Immorticia - Witch's Familiar:
Make a 2/1 Zom-Bats that says 'When this hurts a Plant: Draw a card.'
Z-Mech - Missile Madness:
Attack for 2 damage in three random lanes.
Neptuna - Octo-Pult:
Make a 3/2 Octo-Pet with Amphibious.