Erudition

Erudition is a magical weapon and vestige.

It is currently carried by the githyanki wizard Vrack Abd Drakhar, and was seemingly gifted to him by the goddess Ioun.

Appearance:

Erudition appears as a silvery pearlescent great sword nearly six feet light, but unusually light for its apparent weight. It does not appear to be sentient.

Abilities:

Erudition can only be attuned to be a wizard. It permits the user to substitute their intelligence bonus for strength in combat, and to have an armor class one higher than their spellcasting DC.

Once in an awakened state, it allows the wielder to attack twice per round, and if both attacks strike to cast a cantrip or first level spell.

Current state: As of Endless Sky Season 2 Episode 2, Erudition has ceased to be magical. It has been given by Vrack to Abby, who has the intention of "makin' it a weapon, with a big gun in it or somethin'"