Karma

 is a Tier 5 Tank that upgrades from Boomer and Blocklayer at level 60.

Technical
The is a unique variant of Blocklayer due to the mechanics of the Boomer branch. The original idea was that instead of cloaking when they stay still, the boomerangs would invisible when they start returning to the player. However, as of writing this description the ability does not work and the boomerangs are always slightly invisible like VPN.

Trivia

 * This tank was an idea by Fourche7.