Artifice

The Abyssian style of magically imbuing objects with additional properties and functions. Unlike 'true' enchantment, artifice is primarily Celestial in nature. This ties into the definition of Artifact- objects which gain enough Celestial Weight to sustain fragments of true soul. Note that this is tied to Significance and not merely energy- the former is functionally inviolable, while the latter can dissipate quite easily depending on environmental conditions. Otherwise, every arclance could be considered an artifact, and that would be quite misleading. Of course, the standard application of this magic is far weaker. Most works of artifice are coloquially referred to as enchantments, seeing as the difference doesn't really matter all that much for the end user. Technically, the term for an object enhanced by artifice would be 'artificed' instead of 'enchanted', but very few people (notably, no actual artificers) use the term.
A lot of artifice is working with and leveraging Celestial concepts- primarily the creation and enforcement of boundaries. Sorcery concepts also come into play- primarily the use of Illusion as a pseudo-soulspeak to gradually engrave a 'personality' into the object. As a general rule, artifice works on discrete thresholds, whereas enchantment affects the object as a whole (or at the very least, is more volume-focused).

Equipment Claim

Being a form of soulcraft, many features of artifice differentiate between the wielder and the rest of the world. This is a significant difference from Epacs-style enchanting: works of artifice literally have a formal concept of 'being equipped' baked into them due to the nature of soul magic and claims. Many works of artifice require keying signatures to function properly. For example, 'neutral' Phantom Adamantine isn't particularly useful. Some variations simply read the signature of whomever holds the blade (or whatever else). Keying to bloodlines and other traits is also possible, though more complex.
Technical analyses of artifice generally describe its focus on manipulating boundaries. The most basic boundary that defines a work of artifice is delineation between it, and everything else: arguably, a primitive sense of self. True Artifacts take this to its logical conclusion, containing enough Celestial energy to sustain an actual soul.

Limitations

Artifice is a lot less powerful than one might expect- in terms of its underlying principles, it has the potential to rival the Whirlpool royal script in terms of scope. The primary limitation on its development has actually been Vhagar's Law. The practice is almost tailor-made for human sacrifice, even more than the famously kill-happy royal script. However, it can't really take off in the same way because of the fact that Cotd literally can't kill each other. Some argue that this is for the best, really. Especially after Artificer's Folly.
Whirlpool's soul-vivisecting magics are less efficient than artifice, but they also require far less control and time investment.