Errant arcanist

You've lived so many different lives all within the span of one, one might assume you're a cat (because you had like..... 9). You've earned quite the collection of skills from such a seasoned youth.

• while sleeping you cannot be affected by spells or magic effects that directly target a sleeping creature. Furthermore, you can choose to not be awoken by external stimuli such as noise, bright light, or even inclement weather, and can only be forced awake by taking damage or being unable to breath. 
• If you see another creature cast a spell that is on the wizards list of spells and is of a level of spell you can cast, you can attempt to learn this spell by observation. Before you complete your next long rest, you may attempt to add this recently seen spell your book. This process takes twice as long as copying it from written material, costs twice as much, and requires a successful arcana check (DC 15 for lvl 1-2 spells, DC 20 for lvl 3-5 spells, DC 25 for lvl 6-8 spells, and DC 30 for lvl 9 spells). should you fail the check you cannot try to learn that spell in this way until you take a long rest and observe it being cast again. 
• you can reroll Nat 1s and 2s on nature check to recall information about Fey wild native flora and fauna. 
• Lastly, you have advantage on sleight of hand checks to steal specifically food, valuables (but not coins), and wizard paraphernalia such as books, scrolls, casting focuses, and other things needed to practice the arcane (can include magic items but only if wizard specific). 

You gain this ability at level 11: 

Arcane Aggregation: Once per long rest, as a bonus action you and one willing ally, within 30ft of you, who is a spell caster can magically attune to each other for 1 hour (you both must have an open attunement slot to do this).

while you are attuned to each other in this way you both have access to the others preprepared spell list and can cast those spells using your own spell casting abilities (given you have the spell slots to do so). Any spells being concentrated on or are still in effect, end when the hour is up, if they are from the other persons spell list.