Pepperspray

 is a Tier 4 Tank that upgrades from Chiller at level 45.

Design
The looks similar to the Chiller but its blue debuff indicator turns a shade of indigo. Its glow also turns from blue to indigo, the same color as its indicator.

Technical
The switches out its chill for a completely different debuff. Instead of slowing targets, it blurs their vision, making it more difficult for them to see. This blur affects the entire screen, including the score counter, the leaderboard and even the upgrade menu.