Alter Size

2nd level transmutation
Casting Time: 1 action
Range: 30 feet
Components: V, S, M (a pinch of powdered iron)
Duration: Concentration, up to 1 hour
Classes: Druid, Sorcerer, Wizard

Choose yourself or a creature you can see within range as the target, then choose Enlarge to increase the target's size category by one or Reduce to decrease the target's size category by one, along with all objects worn or carried by them, for the duration of the spell. For example, you could make a Medium target become Large or Small, and all items worn or carried by them would resize proportionally with them. You cannot change your choice of target or choice of size after you have cast the spell. If the target is unwilling, they can make a Constitution saving throw. On a success, the spell has no effect.

• Enlarge: For each size category increase gained from this spell, the target's size doubles in all dimensions, their weight is multiplied by eight, their Strength score and Strength maximum score increase by 3, their Dexterity score decreases by 3, and their unarmed and weapon attacks deal 1d4 extra damage. If there isn't enough room for the target to reach its full size, they attain the maximum possible size in the space available.
• Reduce: For each size category decrease gained from this spell, the target's size is halved in all dimensions, their weight is reduced to one-eighth of normal, their Strength score decreases by 3, their Dexterity score and Dexterity maximum score increase by 3, and their unarmed and weapon attacks deal 1d4 less damage to a minimum of 1 damage.

If the target was Medium sized or smaller and becomes Large or larger due to this spell, their reach increases by 5 feet. Conversely, if the target was Large or larger and becomes Medium or smaller due to this spell, their reach decreases by 5 feet. This spell cannot cause a target to become smaller than Tiny or larger than Gargantuan in size and cannot decrease an ability score below 3 or increase an ability maximum score above 30.

At Higher Levels. When you cast this spell using a spell slot of 5th level or higher, you may cause the target to increase or decrease up to two size categories instead of one. When you cast this spell using a spell slot of 8th level or higher, you may cause the target to increase or decrease up to three size categories instead of one.