Revision and improvement of the arcane trickster rogue class. Upgrading it's spell casting ability and emphasis on trickery.

Arcane trickery points

Starting at 3rd level, you gain magical ability to trick and fool people, you gain spellcasting and know the mage hand cantrip, this mage hand is invisible to all but you. This does not count toward your cantrips known list. You also unlock Arcane Trickery points, which equal half your arcane trickster level +your charisma modifier. You may use these points on spell and metamagic like abilities, choosing from the distant, quickened, and subtle spell features.

Trickery spells: you may expend arcane trickery points to cast the following spells

Disguise self: 1 point

Distort value: 1 point

Silent image: 1 point

Blur: 3 points

Invisibility: 3 points

Nystuls magic aura: 3 points

Hypnotic pattern: 5 points

Major image: 5 points

Phantom steed: 5 points

Greater invisibility: 6 points.

 

 

Tricksters Expertise

When you choose this archetype at 3rd level, you gain a modicum of control over your mage hand and gain the use of the following features

-you may use your bonus action to summon and command your mage hand to distract an opponent in 30 feet, causing the next attack against them to have advantage or as a reaction cause them have disadvantage on their next attack.

-you can pickpocket (stow or retrieve and item) with your mage hand with a slight of hand check, you are considered proficient when doing so

-you may use thieves tools at a distance with your mage hand

You may consume 1 Arcane Trickster point to have advantage on the check.

At 6th level you may consume 3 arcane trickster points to cast invisibility on your self.

At 9th level you may add expertise bonus to your mage hands tasks.

Dirty magic fighting

Starting at 9th level, you may apply your sneak attack bonus to your spells. The spell must be single target to benefit from this. If the spell does not do damage or has an area of effect, they instead make the save at disadvantage if they can't see you.

Additionally when someone investigates an illusion made by a minor illusion spell or similar effect, they do so at disadvantage

At 10th level you may cast major image for 4 Arcane Trickster points.

Mage hand mastery

By 13th level, you have gained increased mastery over your mage hand. This allows you to carry twice the normal weight and additionally allows the casting of touch spells through your mage hand for 1 arcane trickery point.

At 18th level the weight capacity increased to three times.

Arcane Larceny

When you reach 17th level, your arcane knowledge has increased to the point to where you can steal magic from another being. If you are targeted or are included in the area of a spell attack, you may spend a trickery point to force a saving throw against your spell save dc, on a fail you may impose disadvantage on the attack roll, or advantage for those in the area of effect. If you succeed you may steal the knowledge of that spell from the caster, they may not cast the spell  until they complete a long rest. As long as you have spell slots to spend on the spell, you may cast it at that level. You may do this equal to 1/2 your charisma modifier every long rest(minimum 1)