Bones Heed Mine Word

You present the silvered skull upwards, drawing power to it and command the powers at be to meld the bones around you to your command.

You can create this way an object no larger than 10 by 10 by 10 feet across and you must have the proper amount of bone material to be able to create such objects. The objects are considered magical and when subjected to detect magic they can be identified as being created by this spell.

Weapons and armors created with this spell have each a special characteristic:

Osteomantic Weapon: This weapon deals an additional 1d6 force damage against undead creatures. Additionally when scoring a critical hit with this weapon, a creature needs to succeed on a Wisdom Saving Throw or become frightened until the end of your next turn.

Osteomantic Armor: While wearing this armor undead creatures that attack you with a melee attack take an 1d6 force damage. Additionally when a creature deals a critical hit against you they must succeed a Dexterity Saving Throw or take 2d4 piercing damage as shards of the armor jump into their flesh.

All objects created by this spell are permanent. Weapons and armors created by this spell usually don't last long in actual combat, deteriorating and becoming useless in combat within 1d10 days.