Enchant Magic item

There are many ways to Craft Items, magical or otherwise. When it comes to crafting magical items there are many routes as well.
One is very complicated and hit-or-miss where you need a formula, time, money, and items.
There is a system where one creates focal stones and through a complicated, time-consuming and expensive process enchant items.
There is another system of Gem Magic where you can enchant gems and then use sockets to change the enchantment as well.
And here we explore a different system utilizing Residuum. With a bit of Residuum it is possible to create a magic item or upgrade other magic items. It is always a risk and still takes a bit of time, but nothing like the other systems. If you have just a bit of Residuum and knowledge of the Disenchant Magic Item you can always make more of this magical dust.

Effect

Magic drawn from the warp and weft of the universe infuses the item you hold in your hands. Casting this ritual allows you to create a magic item or upgrade an existing magic item using a quantity of gold and residuum equal to the cost of the magic item (50% each). To create a magical item, the component cost is the price of magical item. For an existing magical item that your are magically upgrading, the component cost is the difference in price between the existing item and the upgraded magical item. (based on DM's pricing) A magic item can only be enchanted by magic users with a spell casting level that matches the rarity of the magic item according to the table below. This spell gets the caster away from many of the other stipulations of enchanting a magic item and so the spell is never shared freely and residuum is coveted by anyone who comes in possession of it. (See chart below)

Material Components

Quantity of Residuum equal to half the cost of the magic item, and Gold equal to half the cost of the magic item

Related School

Transmutation

Related Element

Residuum

Effect Duration

Permanent

Effect Casting Time

1-8 hours

Range

Touch

Level

3rd level

Applied Restriction

This can be frowned upon or even deemed illegal by many governments, so most wizards are very private of this method and protective of the spell and materials.

Homebrew

Enchant Magic Item

3-level Transmutation

Ritual - does not require spell slot, takes 10 minutes longer

Casting Time: Varies, 1-8 Hours

Range/Area: Touch

Components: V, S, M

Materials: Quantity of Residuum equal to half the cost of the magic item, and Gold equal to half the cost of the magic item

Duration: Instantaneous

Magic drawn from the warp and weft of the universe infuses the item you hold in your hands. Casting this ritual allows you to create a magic item or upgrade an existing magic item using a quantity of gold and residuum equal to the cost of the magic item (50% each).
To create a magical item, the component cost is the price of magical item. For an existing magical item that your are magically upgrading, the component cost is the difference in price between the existing item and the upgraded magical item. (based on DM's pricing)
A magic item can only be enchanted by magic users with a spell casting level that matches the rarity of the magic item according to the table below.
This spell gets the caster away from many of the other stipulations of enchanting a magic item and so the spell is never shared freely and residuum is coveted by anyone who comes in possession of it.

Rarity	Spell Casting Level	Casting Time
Common or Uncommon	3rd Level or Higher	1 Hour
Rare	5th Level or Higher	2 Hours
Very Rare	7th Level or Higher	4 Hours
Legendary	9th Level	8 Hours

Available for: Any Caster