Archimedes the Spirit of the Weave

Weave Spirit: Archimedes is the judgmental spirit form of magic who chooses to give his power to those attuned with magic. Once chosen you can turn any spellbook, you are attuned with into the book of Archimedes which stores all spells gathered by Echo of Magic.

Prepared Spirit: When you spend uninterrupted time, Archimedes will lose any spells he has already prepared. Archimedes will prepare new spells chosen from your book of Archimedes whose total levels don’t exceed your own level +1. Cantrips never count against your limit.

Tribute to Magic: You have to make an offering to the weave for using Echo of Magic, which has to be equal to the level of the spell, or you be punished by the weave taking 3 times the spell's level as damage. The tribute must be equal or greater in value than (Level) * (Level) * 10 coins. If you don't have enough tribute or your health reaches 4 or less, make a DC 16 Charisma Saving throw on a fail Archimedes will remove the spell from the book of Archimedes.

Oppose Magic: You attempt to interrupt a creature in the process of casting a spell. If the creature is casting a spell of 3rd level or lower, its spell fails and has no effect. If it is casting a spell of 4th level or higher, make an ability check using your spellcasting ability. The DC equals 6 + the spell's level. On a success, the creature's spell fails and has no effect. If Oppose Magic succeeds you are forced to use Echo of Magic.

Echo of Magic: The spell you have opposed is now gathered and learned for you by Archimedes. If Archimedes has unprepared spell slots, he can also prepare them in one turn.