Mind flayers can turn any nonmagical sword into a mind blade. Only one creature can attune to it: either a specific mind flayer or one of its thralls. In the hands of any other creature, the mind blade functions as a normal sword of its kind. In the hands of its intended wielder, the mind blade is a magic weapon that deals an extra 1d6 psychic damage to any target it hits.
If the blade is attuned to a mind flayer, at higher levels they can empower the blade. At levels 6, 10, and 14 the psychic damage increases by an additional 1d6.
Proficiency with a Greatsword allows you to add your proficiency bonus to the attack roll for any attack you make with it.
This weapon has the following mastery property. To use this property, you must have a feature that lets you use it.
Graze. If your attack roll with this weapon misses a creature, you can deal damage to that creature equal to the ability modifier you used to make the attack roll. This damage is the same type dealt by the weapon, and the damage can be increased only by increasing the ability modifier.
Notes: Damage: Psychic, Requires attunement by a specific individual., Heavy, Two-Handed, Graze
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