Make good use of the Cultivator's small size; use rows of two when needed
Nourishment Pods can tank and heal in a surprisingly wide radius
Remember that Biomass reduces damage taken
On Iron Shield, 2 Nourishment Pods and 3 Cultivators can reliably handle defense outside special attack waves. One Nourishment Pod can work, but may be riskier depending on the enemy composition
Guides & Information
KD's Comprehensive Co-op Vynthra Guide
KD's Comprehensive Co-op Vynthra Guide
Defense Tips