Dimensionally Touched

The dimensional touched are a type of sorcerer whose been touched by the energy that erupts when someone dismisses a familiar, or another creature. This incident may have happened as a child, when a familiar was on your shoulder and was dismissed. Or, you have come across an object that was in the same pocket dimension a familiar is stored in, and when you put it on, the energy flew into you. Regardless of how you gained the power, you must wield it wisely, or it will devour you, drawing you into a pocket dimension of your own.

Familiar Energy

You have access to a spell called Find Familiar, due to the dimensional energy traveling through you. You may cast Find Familiar without material components, and may choose any creature with a max CR of 1, is tiny, and does not have innate spellcasting. At 5th level, It may attack, but you have to use your action to let it attack. 

Energetic Body

Also at 1st level, the energy moving through you allows you to cast spells easily. Your body is a spellcasting focus, and you may perform Somatic spells while holding something with 2 hands. In addition, you movement speed increases by 10 feet.

Dimensional Blink

Starting at 6th level, you have learned to harness the power of the energy inside you. You may use a bonus action to disappear and reappear at a location within 60ft. This doesn't draw opportunity attacks. You regain this every short rest.

Increased Familiar

At 14th level, you may have a creature of CR 2 that is tiny and doesn't have innate spellcasting from you Familiar energy. 

Pocket Dimension Death

When you die, you may channel the power of your pocket dimension. as a reaction, you may roll a d20. If higher than 10, you are unconscious, and disappear for 1d4 days. You reappear at a location of your choice you have seen before. If you roll a 1 on your d20, you die permanently, and your body turns to dust.