Sigil Stone (Oblivion)

As you venture into the Oblivion realms or close random oblivion gates in the wilderness, you will build up a large collection of sigil stones. When you activate the stone at the top of a Daedric Citadel, you take it and keep it. When selected in your inventory the stone can then be used to enchant and unenchanted item without the benefit of an enchanting station.

There are 150 types of Sigil Stones, 30 varieties, with five levels of magical power within each. The variety of stone you will recieve in a given tower is chosen at random. Indeed you could receive the same stone again and again, though each does have a fixed number of maximum uses.

Each stone carries a pair of mutually exclusive enchantments, one that effects an enemy and another that acts directly on your own character. If you select a weapon, you will be offered only the anti enemy enchantment. It takes effect on a strike by that weapon. If you select clothing or armor, you will be offered only the constant effect character enchantment.

Once you complete the enchantment the stone vanishes. The power of these enchantments is adjusted to your character's current level. At levels 1-4, you will always get a Descendant Sigil Stone, at levels 5-8 a Subjacent Stone, at levels 9-12 Latent stone, at levels 13-15 an Ascendant Stone, and at level 17 and up a Transcendant stone.