36 Redstone Dust, 7 Redstone Torches, 7 Diamond Blocks, 1 Dragon egg (not consumed).
Any runic tool
1 Use, consumes the rune except the egg.
A blessing of binding, the tool shall follow you anywhere, even through death, only by the chaos of the void can it be destroyed.
When the rune is built, right click the egg with any runic tool to use the rune on the tool, it will then follow you everywhere, if you throw it will come back, it can only be destroyed by throwing it into the void. the egg will not get consumed.