LegendControl [Pixelmon]

LegendControl is an addon that changes how the Pixelmon spawn system produces legendary Pokémon. A legendary has a standard 10% chance to appear. Each unsuccessful attempt raises the chance by 5% until one appears, and after a legendary spawns the chance returns to the standard value. Worlds can be placed on a blacklist so that legendaries never spawn there.

Players receive personal notifications when a legendary appears, and the whole server is told when one is caught, lost or defeated. A checkleg command estimates the approximate time until the next legendary spawn. Players with certain permissions can have additional legendaries shown to them. The mod also includes many other additions and full configuration options.

LegendControl-Defender is a companion addon that protects legendary Pokémon from theft. The main mod also prevents possible fake appearances caused by a poorly working legend system. Installation requires ExtraLib and Pixelmon. The environment is server-side only, so players join without installing it, and the code is under the MIT License, making the project open source. Files are published for Forge and NeoForge, with builds for 1.12.2, 1.16.5 and 1.21.1.