A very simple Tool Leveling System:

• Every tool's mining speed is slower by default, increases higher then vanilla on higher levels!

• Tools level up when mining specifically the blocks they are designed for: Pickaxes - All Ores (Mod compatible) Axes - All wood, logs (Mod Compatible) Shovels - Dirt

• Max level is 8th, with the mixing speed increasing by x0.25 per each level,

• Mod Compatible! - Tools can use modded blocks to level up, they just need to be the right type of block, Leveling system is compatible with Modded tools by default, if you are a mod dev you don't need to do anything but extend the PickaxeItem/AxeItem/ShovelItem in your custom tool