Here's how to add the Mega Evolution mechanic to Minecraft's Cobblemon mod through Mega Showdown and Navas ZA Megas.
Quick tutorial I made on how to increase your brightness in Minecraft Java edition without mods or shaders.
Or add it with the Curse launcher. Electrical simulation with resistive and capacitive effects. Behaviour similar to those of real life objects. Multiple electrical machines and components Furnaces, ...