In Oblivion you can get more Magicka by choosing certain Birthsigns for your character, collecting Sigil Stones from Oblivion ...

Grabbing a Sigil Stone from one of Oblivion Remastered's Oblivion Gates is a great way to get powerful new abilities.

Obtained from Elite Monsters, Whisper Bounties, and using the Occultist to salvage nightmare sigils of any tier. Use Sigil Powder to craft Nightmare Dungeon Sigils A mysterious powder that can be ...