Fungalmancer

The Fungalmancer is a tier 5 tank upgrades from Surgeon at level 60

Design
The fungalmancer appears similar to the surgeon with minor alterations. namely the bottom piece resembles a mini grower

Technical
The bullet it fires (like the surgeon) explodes into bars which fire a secondary projectile. In this tanks case the bars fire grower bullets and the bars hang around in one spot for ~20 seconds.

Upgrades
It upgrades at level 60 from surgeon and doesnt upgrade further.