Multiplier

The multipliers were added by the multiplication mod. You can craft them with any item to get that amount of the item or another multiplication ore to increase its value. However, you can not clone multipliers, only increase their value. The only way to exploit this is via silk touch pickaxes. The ores which yield multipliers are exclusively found deep underground and are essential to obtaining a good supply of any item include the Ender Dragon Egg.

Upon mining the ore, you will generally get a x2, x4, or x8.