- "Summon a deadly growth of thorns in front of you. Enemies moving through it are slowed by 50% and take toxic damage."
- — Create-A-Class description
Like all Field Upgrades in Zombies, Toxic Growth can be upgraded using Aetherium Crystals.
- Upgrade I: Double the health of the growth.
- Upgrade II: Increase the maximum charges to 2.
- Upgrade III: Double the damage enemies take while moving through the growth.
- Upgrade IV: Increase the maximum charges to 3.
- Upgrade V: Enemies killed by the growth explode dealing toxic damage to nearby enemies and slow them by 50% for 3 seconds.