Warped Physique

House Dimir Spell
Level 1 (?)
Duration: Concentration 1 Minute
Range: 60 ft
You cause a creature or an object you can see within range to be warped into a nightmarish shape that is larger or smaller for the Duration. Choose either a creature or an object that is neither worn nor carried. If the target is unwilling, it can make a Constitution saving throw. On a success, the spell has no effect.
If the target is a creature, everything it is wearing and carrying changes size with it. Any item dropped by an affected creature returns to normal size at once.
Enlarge. The target's size doubles in all dimensions, and its weight is multiplied by eight. This growth increases its size by one category - from Medium to Large, for example. If there isn't enough room for the target to double its size, the creature or object attains the maximum possible size in the space available. Until the spell ends, the target also has advantage on Strength Checks and Strength Saving Throws. The target's Weapons also grow to match its new size. While these Weapons are enlarged, the target's Attack with them deal 1d4 extra damage. This also shrivels up the creature's legs, halving their Speed for the duration.
Reduce. The target's size is halved in all dimensions, and its weight is reduced to one-eighth of normal. This reduction decreases its size by one category - from Medium to Small, for example. Until the spell ends, the target also has disadvantage on Strength Checks and Strength Saving Throws. The target's Weapons also shrink to match its new size. While these Weapons are reduced, the target's attacks with them deal 1d4 less damage (this can't reduce the damage below 1). This also leaves the creature with abnormally sized arms or appendages that allows it to maneuver much quicker. While this is active the creature's movement speed increases by an amount equal to half its maximum speed and all melee attacks against it have disadvantage if the creature making that attack is a size larger than it..