Attack Potency

It's essentially **the destructive capacity that an attack is equivalent to.** A character with a certain degree of attack potency does not necessarily need to cause destructive feats on that level, but can cause damage to characters that can withstand such forces. As such it isn't proof of a low attack potency, if a character's attacks only cause a small amount of destruction.

Although it would violate the principle of conservation of energy, in fiction it's usually ignored, as so it should be overlooked.

Also, remember that Attack Potency is the measure of an attack's destructive power, it is measured by energy damage equivalent. Therefore, characters that destroy mountains or islands aren't automatically mountain or island level, especially if they're small. **The attack potency depends on the energy output of a single attack, not the area of effect of the attack.**

Also, remember that certain tiers do not always correspond to the destruction of their namesakes in any meaningful fashion. This is because the minimum requirements for these tiers are arbitrary values.

## Explanation

### Standard sizes

* **Moon level:** Earth's satellite Moon.
* **Small Planet level:** Mercury.
* **Planet level:** The Earth.
* **Dwarf Star level:** Brown Dwarf star (specifically, the OTS 44).
* **Small Star level:** VB 10.
* **Star level:** The Sun.
* **Large Star level:** Rigel

* **Solar System level:** The star system known as the Solar System.
* **Multi-Solar System level:** Instead of doubling the value of Solar System level, the distance between two such systems needs to be accounted for as well. The calculation for energy required to destroy two solar systems was done, with the following assumptions:
	+ Distance between them as the minimum distance between Sun and the next closest star, the Alpha Centauri.
	+ A spherical blast, strong enough to obliterate the contents of both solar systems at the same time.
	+ Hence, the value obtained is the energy required to destroy two solar systems at a realistic distance.
* **Galaxy level:** The Milky Way galaxy.
	+ Galaxies in fiction tend to be destroyed completely, not dissociated. Hence, it is far more logical to index a common occurrence of compete obliteration instead of an obscure one like dissociation.
* **Multi-Galaxy level:** Instead of doubling the value of Galaxy level, the distance between two galaxies needs to be accounted for as well. The calculation for energy required to destroy two galaxies was done with the assumptions:
	+ Distance between them as the minimum distance between Milky Way Galaxy and the next closest similar-sized galaxy, the Andromeda galaxy.
	+ A spherical blast, strong enough to obliterate the contents of both galaxies at the same time.
	+ Hence, the value obtained is the energy required to destroy two galaxies at a realistic distance.
* **Universe level:** Given that the universe's actual size is unknown, we do not know the amount of energy that would be required to destroy all matter within it. As such, the bare minimum value for the observable universe: PSRJ0348+0432 through Inverse Square Law at 4.4087x10^26 meter radius (Observable Universe radius) was used as a base. Any greater finite number is also included within this tier, whereas countably infinite numbers are included under **High Universe level**.

### Omitted levels

* **Small Moon level:** While most other tiers have been into 3 sub-tiers, Moon level does not have Small Moon level due to the existence of Multi-Continent level. Simply put, the two intersect, and Multi-Continent level is far more common than Small Moon.
* **Small Galaxy level:** Same reason as the one for Small Moon level, with the tier clashing with Multi-Solar System level instead.
* **Large Galaxy level:** Large Galaxy level was omitted because unlike planets, galaxies in fiction rarely specify the size of said galaxy, and instead go from galaxy to multiple galaxies. As such, a "Large Galaxy level" rating would not only be confusing, but also redundant.
* **Higher and lower layers/levels of reality:** These levels are not listed because they are not restricted to the same parameters for energy requirement. The energy for such levels cannot be calculated.