Actions

Multiattack.

The matter smith makes two Manifested Force attacks.

Manifested Force.

Melee or Ranged Spell Attack: +5 to hit, reach 5 ft. or range 120 ft., one target. Hit: 10 (2d6 + 3) force damage.

Spellcasting.

The matter smith casts one of the following spells, using Charisma as the spellcasting ability:

At will: mage armor, mage hand, prestidigitation
1/day each: create food and water, fabricate (as an action)

Bonus Actions

Planar Smithing.

The matter smith magically manipulates the energy of the plane of existence it's on to produce one of the following effects (choose one or roll a d4):

1-2: Chains. The matter smith creates spectral bindings around a creature it can see within 30 feet of itself. The target must succeed on a DC 13 Dexterity saving throw or have the restrained condition until the end of its next turn.
3-4: Magic Shield. The matter smith conjures a floating, spectral shield that grants the matter smith a +5 bonus to its AC until the shield disappears at the start of the matter smith's next turn. The first time a creature misses a melee attack roll against the matter smith while the shield is conjured, that creature takes 7 (2d6) force damage.

Mind's Eye Matter Smith