While wearing or carrying an object inscribed with this rune, you have advantage on Dexterity (Sleight of Hand) checks and Charisma (Deception) checks. This rune emulates the deceptive magic used by some cloud giants. If a rune requires a saving throw, your Rune Magic save DC equals 8 + your proficiency bonus + your Constitution modifier. If a rune has a level requirement, you must be at least that level in this class to learn the rune. The following runes are available to you when you learn a rune. Your rune remains on an object until you finish a long rest, and an object can bear only one of your runes at a time. To be eligible, an object must be a weapon, a suit of armor, a shield, a piece of jewelry, or something else you can wear or hold in a hand. Whenever you finish a long rest, you can touch a number of objects equal to the number of runes you know, and you inscribe a different rune onto each of the objects. When you reach certain levels in this class, you learn additional runes, as shown in the Runes Known table. You learn two runes of your choice, from among the runes described below, and each time you gain a level in this class, you can replace one rune you know with a different one from this feature. Starting at 3rd level, you can use magic runes to enhance your gear. When you choose this archetype at 3rd level, you gain proficiency with smith’s tools, and you learn to speak, read, and write Giant.

Source: Tasha's Cauldron of Everything Bonus Proficiencies

Insight editions supernatural