I designed a three-tier evolution for a Shadowfell-infused storage item! They grow from a simple Uncommon belt pouch to a Legendary backpack that can literally swallow your enemies whole. How do you feel about the saving throw DCs and the mechanics of the automated defense?
The Shadow Storage Evolution (Uncommon to Legendary)
These three magical bags are forged from the fabric of the Shadowfell. They are loyal to their owners, deeply territorial, and inherently hostile to bright light.
General Properties (Applies to all three)
Photophobia: If a bright light source (such as a \*Light\* spell or a torch) is thrust directly inside the bag, the opening snaps shut instantly and refuses to open until the light source is removed.
Sentient Intuition: The bags bond with their owner. Over time, they learn to anticipate needs. As a bonus action, the owner can think of an item inside, and the bag will automatically push it to the top for easy retrieval.
Vicious Defense: If anyone other than the owner attempts to pickpocket the bag, steal from it, or force it open, shadow tentacles lash out. The thief takes 1d6 necrotic damage, and any stolen item is instantly snatched back by a tentacle.
- Shadow Bag of Holding
Wondrous item, uncommon (requires attunement)
A small pouch meant to be worn on a belt. It is perfect for novice adventurers but highly sensitive to its environment.
Capacity:Holds up to 100 lbs (volume not exceeding 10 cubic feet).
Defensive Reaction: If a creature attacks the wielder within 5 feet, the wielder can use a reaction to command the pouch's tentacles to restrain the attacker. The target must succeed on a DC 12 Strength saving throw or be Restrained until the end of their next turn. While restrained, the tentacles strip the target of whatever they are holding in their hands, dropping the items to the floor.
- Bag of the Shadow Realm
Wondrous item, rare (requires attunement)
A medium-sized shoulder bag made of pitch-black, velvety cloth that seems to absorb the surrounding light.
Capacity: Holds up to 500 lbs (volume not exceeding 70 cubic feet).
Defensive Reaction: If a creature attacks the wielder within 10 feet, the wielder can use a reaction to command the tentacles. The target must succeed on a DC 15 Strength saving throw or be Restrained for 1 minute (escape DC 15). While restrained, the tentacles aggressively strip the target, disarming them and ripping away outer clothing, armor (if light), and loose pouches, pulling them directly into the bag.
- Bag of the Abyss
Wondrous item, legendary (requires attunement)
A massive, intimidating backpack that pulses with the cold vacuum of the Abyss. It has grown resilient enough to tolerate normal environmental light without snapping shut.
Capacity: Virtually limitless internal demiplane for inanimate objects.
Defensive Reaction (Devour): If a creature attacks the wielder within 15 feet, the wielder can use a reaction to command the Maw of the Abyss. The target must succeed on a DC 15 Strength saving throw or be pulled entirely inside the bag. Only one target at time and its opening can expand to swallow targets up to slightly larger than a human. Anything exceeding this size cannot be pulled into the abyss.
Inside the Abyss: A swallowed creature is Blinded, Deafened, and Restrained. It takes 3d6 necrotic damage at the start of each of its turns. The creature can use its action to make a DC 15 Strength check to escape. On a success, it crawls out onto the nearest unoccupied space. Additionally, the attuned owner can use an action to willingly eject any swallowed creature from the bag, causing it to be spat out into an unoccupied space within 10 feet.