Gets more projectiles every 20 levels (max +4). Unlock: Defeat 6,000 suspicious enemies in total (DLC-only character).

Horse's passive stacks well with projectile-dependent weapons. Running multiple projectile-based weapons simultaneously maximizes the per-20-level bonus.

Build around Hat. Run multiple projectile-based weapons to maximize the passive scaling. Prioritize Amount-boosting passives alongside the natural passive growth.