The Magical Storage Device normally looks like a sphere, but when it's attuned to a creature it takes a form depending on the number rolled on a d8.  Each form has it's own advantages and disadvantages:

1. Cloud- Can be summoned by shaking the Device's original form and floats, but is more easily destroyed.
2. Chest- Is extra protective, but is four times as heavy.
3. Sack- Has a magical enchantment allowing it to carry more items than normal, but is very heavy.
4. Backpack- Can be worn and weighs less, but cannot carry many items without its weight doubling.
5. Bag- Can be worn and weighs less, but cannot hold as many items without it ripping.
6. Case- More protective of items, but holds less.

The Device can be destroyed by taking at least 30 force damage (unless it's the cloud, in which it can only take 20 force damage, or if it's the case, it requires 35 force damage, or if it's the chest it requires 50 force damage to be destroyed).  When destroyed, the Storage Device implodes and any items contained in it are flung within a 15-foot sphere around where it was destroyed.  When in a form, it weighs 5 pounds (if it is the bag, it weighs 1 pound, if it's the chest, it weighs 20 pounds, the backpack weighs 3 pounds unless it has 9 or more items in which it weighs 18 pounds, and the enchanted sack weighs 19 pounds.  This is all WITHOUT items in them).  The Device can only hold 20 items (unless it's a case, it can only hold 10 items, the bag can only hold 7 items without ripping, the backpack can only hold 15 items, any more than 15 and it will weigh 6 pounds

Notes: ranger, sorcerer, wizard, warlock, druid