KillCoins
About
A competitive PvP economy plugin where players earn * Coin per **** and lose * Coin when ****** by another player. Features a /shop GUI with three permanent upgrade trees: Speed, Strength, and Resistance, each with 3 tiers of increasing power. Upgrades persist across sessions via per-player YAML files and are automatically reapplied on login and respawn. Coins and upgrade levels are stored persistently.