Hemovelocity

Hemovelocity

Hemovelocity is a custom boots enchantment that grants a speed boost when your health drops below half. The boost scales with how much HP you've lost relative to your maximum health, making it fair for all players regardless of heart count. It vanishes the moment you reach half health or above — a high-risk escape tool, never a permanent advantage.

Speed Boost

Formula: movement_speed bonus = (0.001 + 0.00025 × (level - 1)) × (max_health / 2 - health) × 20 / max_health

Base sprint-jump speed: 7.691 b/s |Health|Level 1|Level 2|Level 3| |:-:|---------|---------|---------| |1|+0.496 b/s|+0.620 b/s|+0.744 b/s| |2|+0.441 b/s|+0.551 b/s|+0.661 b/s| |3|+0.385 b/s|+0.482 b/s|+0.578 b/s| |4|+0.330 b/s|+0.413 b/s|+0.496 b/s| |5|+0.275 b/s|+0.344 b/s|+0.413 b/s| |6|+0.220 b/s|+0.275 b/s|+0.331 b/s| |7|+0.165 b/s|+0.207 b/s|+0.248 b/s| |8|+0.110 b/s|+0.138 b/s|+0.165 b/s| |9|+0.055 b/s|+0.069 b/s|+0.083 b/s|

Installation

Drop the .zip into your world's datapacks folder and run /reload. No mods required.