[Tutorial] How to teleport a mob to coordinates relative to itself!

Thoroughly tested on MM 2.4.4 ; Spigot 1.9.2
Confirmations of functionality on other setups are WELCOME

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Hello there again guys! Today I bring you a super simple method of teleporting a mob to a location relative to itself!
This method unlocks a bunch of new capabilities such as:
- Selecting WorldEdit regions relative to the mob (Reliably)
- Creating super precise effects
- Modifying terrain with much ease.
- and much...

[Tutorial] How to teleport a mob to coordinates relative to itself!