Avaldra’s Wicked Wardrobe

You cause a solitary door to appear in an unoccupied space within range. On the outside, it is 10 feet tall and 5 feet wide. When summoned, you may decide whether the door is open or closed, and whether it is locked or unlocked. Any creature of Medium or smaller size can fit through the door. Through the door is an extra dimensional space which has the appearance of the inside of a massive wardrobe. This space is 15 feet high, 10 feet wide, and 10 feet deep and there is no light within it. This space only exists within the door. The door has 20 hit-points and is considered a construct. Creatures both inside and outside the space can damage the door. The spell is ended if the door is reduced to 0 hit-points.

You can use your bonus action to manipulate the door. You can magically lock, unlock, open, or close the door without touching it. Locking or unlocking and opening or closing the door can both be done within the same bonus action. When the door is locked, only a knock spell or similar magic can unlock it. After the door is unlocked in this way, it cannot be locked again for the duration of the spell.

If a creature is in the way of the door as it magically opens or closes, they must make a Dexterity saving throw against the your spell save DC, taking 1d6+1 (4) points of force damage and being knocked back 5 ft on a failed save. If the door is magically closing on a creature or opening beneath it, failing this save will additionally result in the creature being forced into the extra-dimensional space if they are of Medium or smaller size.

When the spell ends, the door disappears, the extra-dimensional space collapses and all creatures and objects within it are violently forced out and returned to the space that the door occupied. Creatures and objects being forced out of the space take 4d6+1 (15) points of force damage and must succeed on a Dexterity saving throw against your spell save DC or be knocked prone.

At Higher Levels. When you cast this spell using a spell slot of 4th or higher level, the extra-dimensional space becomes 5 feet wider (can fit an additional Medium-sized creature) and deals an extra 2d6 damage to expelled creatures for each slot level above 3rd.