Crusader

The Crusader is a Tier 5 Beta Tank found in the beta tanks page that will supposedly upgrade from the Fighter, due to it's appearance, &/or the Chiller or Acid, based on abilities. It is a Fighter with chill and poison effects.

Design
The Crusader looks like the Fighter, besides the fact that there are chartreuse-colored squares on it's side cannons and cyan-colored squares on it's thruster barrels.

Technical
Literally it's just the Fighter with effect damage.

Upgrades
While we don't actually know for sure, this thing may upgrade from the Fighter. We do know it won't upgrade into anything.

Strategy
There are no valid strategies for the Crusader as it hasn't been used enough.

Trivia
My boi Thulium the 69th element had this idea.

By Goggle defenition, a Crusader is a fighter in the medieval Crusades.