Enlarge/Reduce

Level & School
2nd-level transmutation
Casting Time
Action
Range
30 feet
Components
V, S, M (a pinch of powdered iron)
Duration
Concentration, up to 1 minute
Classes
Bard, Druid, Sorcerer, Wizard

For the duration, the spell enlarges or reduces a creature or an object you can see within range (see the chosen effect below). A targeted object must be neither worn nor carried. If the target is an unwilling creature, it can make a Constitution saving throw. On a successful save, the spell has no effect.

Everything that a targeted creature is wearing and carrying changes size with it. Any item it drops returns to normal size at once. A thrown weapon or piece of ammunition returns to normal size immediately after it hits or misses a target.

Enlarge. The target's size increases by one category—from Medium to Large, for example. The target also has Advantage on Strength checks and Strength saving throws. The target's attacks with its enlarged weapons or Unarmed Strikes deal an extra 1d4 damage on a hit.

Reduce. The target's size decreases by one category—from Medium to Small, for example. The target also has Disadvantage on Strength checks and Strength saving throws. The target's attacks with its reduced weapons or Unarmed Strikes deal 1d4 less damage on a hit (this can't reduce the damage below 1).

Level & School
2nd-level transmutation
Casting Time
Action
Range
30 feet
Components
V, S, M (a pinch of powdered iron)
Duration
Concentration, 1 minute
Classes
Sorcerer, Wizard

You cause a creature or an object you can see within range to grow 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/Reduce 5.5e 2024 vs. 5e 2014 edition differences

The 2024 version allows enlarging or reducing a creature by one size category, grants Advantage or Disadvantage on Strength checks and saves, and adds bonus or penalty damage (1d4) on attacks. It also specifies thrown weapons or ammunition revert to normal immediately after use. The 2014 version lacks these effects.