The Archlich is a frail thing. As powerful in the mind they may be their undead bodies simply cannot do what they used to. Decreasing their strength and dexterity by 3 each because of their rotting corpses however because of their keen and old minds their wisdom and intelligence increase by 4. The maximum learning capacity of the Archlich also increases to 24 for intelligence and wisdom attributes. For some a reasonable trade-off, but for others a great hindrance. Frail bones and a strong mind often don't win battles of strength.

The Archlich, apon completion of the ritual, must sacrifice something about themselves. Whether it be their memory, a decrease in attributes, an important skill they've learned, or levels, something must be lost to gain the powers of an Archlich. What this is can be discussed with the DM and the player and DM can decide what is a suitable sacrifice, but it must be substantial.

The Archlich has bound it's soul to a phylactery, an object hollow on the inside inscribed with their name and magical runes. As long as this object is safe, and only powerful magic can destroy it, the Lich lives on as either a nearly completely useless ghost or until they can possess a new body. When they drop to 0 HP they die instantly and their ghost leaves their body and floats around until they can find a new body to possess, preferably one already dead. It must be hoped that you can find a body within 100ft as that is the max distance a ghost can go from their phylactery and as a ghost, you can't really pick it up and move somewhere else. However if you already have a body, or found a new one, you can willingly leave your body and become a ghost, nearly invisible unless you want to be seen you are but a faint smoke trail in the air.

Swapping to another body can be tricky. It must be a humanoid, otherwise your undead spirit cannot properly control its natural functions. Bodies should also be of similar size, weight, and gender of your original or.. awkward personality changes may occur. Changing races doesn't effect it as much but it can become difficult to become used to your new body once inside. Especially one of the opposite gender, as there is an entirely different set of changes to worry about besides you are a foot taller than you are used to... A new body can make the Lich susceptible to personality changes or changes in attributes, however these changes won't occur unless a few months minimum are spent in the same body (and after that long most bodies start to fall to pieces and turn to skeletons anyway). Skeletons can also be possessed, they usually don't last as long however due to their bones being easily broken in battle. Depending on the condition dead bodies or skeletons left behind it is easy for a Archlich to jump from body to body during combat, as long as the corpses aren't extremely charred, missing vital pieces, have large holes in them, or their bones are too far apart from the main body. The wear and tear needed to render a body useless usually depends on your DM and how much damage you, or the recently deceased, have sustained (getting ribs crushed or losing legs can easily render a body useless).

The Archlich unlocks an increase of attributes in Constitution and Charisma by 2 after they've grown accustomed to their new body. The Archlich has learned how to preserve their undead body better than their start as well as conduct themselves in more of a pleasant and non-threatening manner. As their mind ages they also increase their knowledge of the world increasing intelligence and wisdom by 1 each. They have also unlocked spells and abilities that they may not have yet learned. These options are unlocked at level 15+.

The Archlich has studied, practiced, and preformed countless methods of using their powerful spirit. But their magical essence continues to grow in power. Beginning at the level 15 if a Archlich chooses to leave their body, or their body dies, they can still use their remaining spell slots for spells however cannot use cantrips. With a flying movement speed of 40 their ghost is able to quickly traverse the land in their ethereal form. The Archlich is also now capable of almost unlimited travel from their phylactery (only restricting it to it must be in the same plane as you (unless godly intervention comes into play)). As such the Archlich is free to roam the land as a ghost if they please but they are now also vulnerable to damage in their spirit form.

While in spirit form the Archlich has a HP of 100 + their level times their constitution modifier. They are no longer resistant or immune to any damages but can only be hurt by magical damage, all other types pass harmlessly though the spirit. If an Archlich were to lose all their HP in spirit form they instantly return to their phylactery and they regenerate 10 HP per day until they reach their max again before they can roam the world once again.

You gain proficiency in two skills, one weapon, and one armor-type of your choice. You also can learn any two languages. However you sadly lose the rest of your past abilities.

Archliches have lived their life and sacrificed it to serve their allies, friends, and family forever. They live for as long as their phylactery remains intact, some living for hundreds of years.

Almost all Archliches fall under the good alignment, with their personalities developing overtime. There can be some variations but most serve a noble purpose and thus act as befitting them.

Archliches tend towards medium size but can be Dwarves, Haflings, or even oddly smart Goliaths. Their size can range from small to large, and can even change when they gain new bodies.

An ArchLich's walking speed is 10ft, due to their weak undead bodies. But they are infused with enough power to compensate and can fly 25ft. Making a total speed of 35. But you also cannot swim, instead you can walk along the bottom or be pulled along since you don't need to breathe!