Harvester

The Harvester is a Tier 4 tank that upgrades from the Trapbrid and Builder at level 45. The main focus of it’s branch is blocks and uncontrollable drones.

Design
The Harvester is essentially a Builder with a trapezoid on it’s rear

Upgrades
The Harvester upgrades from:
 * Trapbrid
 * Builder

It can upgrade to:
 * Overbuilder
 * Underbuilder
 * Boombrid
 * Subordinate
 * Piler
 * Pupil