Here is one last version of this spell.
Traditions divine, primal, occult
Cast [two-actions] somatic, verbal; Duration 1 hour
Translucent arms of force appear behind you. These arms can carry weapons or shields and can be used to cast spells. You can reduce the number of actions one spell can be cast by by one somatic action each turn. You can reduce your multi attack penalty by 1 for one attack each round.
Heightened (4th) you reduce your multi attack penalty by one for each attack you make in a round.
Heightened (6th) all somatic actions can be performed by the hands to a minimum of one action for a spell.
Why not? Let’s hit the last two systems I’ve been playing a lot lately. Now Arms of the Goddess for Starfinder!
ARMS OF THE GODDESS M1
School abjuration (force)
Casting Time 1 standard action
Duration 10 minutes/level
You create shimmering arms of force that appear behind you. These arms can hold weapons or shields and cast spells for you. While you have these arms, you can take the full attack action and only receive a -3 to each attach, but you must make the attack with a second weapon. Alternatively, as a full action you can make one attack at a -3 and cast a level 0 spell with any spell requiring an attack roll to be made at a -3.
How about some love for DnD 5e?
Arms of the Goddess
Casting Time: 1 action
Components: V, S
Duration: 1 minute
A pair of transparent arms of force appear behind you. This pair of arms can hold weapons or cast spells for you. As a bonus action each round, you can cast a cantrip with the arms or make an attack.
My brothers are playing Boarderlands, an I saw a character with multiple ethereal arms. Let’s make this happen!
ARMS OF THE GODDESS, Level 1 wizard, cleric, illusionist
CT 1 R see below D 1 min/lvl.
SV n/a SR no Comp V, S
Upon the incantation of this spell, a transparent, set of arms appears and float behind the caster. The arms may hold weapons and make attacks for the caster, but the caster gains no additional actions to make attacks and cast spells in the same action. When caster with this spell casts another spell, reduce the number of CT to cast the spell by 1.
Ok, something the new school has over the old is wizards and clerics with cantrips that make them a wizard, not a fighter with crappy stats. Let’s fix that!
FORCE PUNCH, Level 0 wizard, illusionist
CT 1 R 50 ft. D Permanent
SV none SR yes Comp V, S, M
A ball of force is throw from the casters extended finger at a single target. The caster must succeed with a ranged touch attack to hit the target. The force punch deals 2 +1 per 2 caster levels damage if it hits.
The material component for this spell is a pebble.