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Animal growth was a transmutation or alteration spell that allowed the caster to double the size of one or more animals.[2][4][5][8] The reverse of this spell, shrink animal, caused animals to shrink to half their size.[4][5][8]


Casting this spell caused one or more animals to grow in size. This doubled each animal's height, length, and width, while increasing its weight by a factor of eight. This increase in size had a number of effects including making the creature more powerful but it also made the creature easier to attack.[2] The creature's strength and hardiness were also increased.[2][4][5][8] This spell did not affect Colossal sized creatures,[2] although the reverse of this spell could.[4][5][8]

When the spell ended, the creature's size and power returned to normal, and any injuries suffered by the creature were reduced in severity by half.[2]

The caster gained no special ability to command or influence the affected animals.[2]


The older version of this spell required verbal and somatic components, the spell also required a material component, a bite of food.[4][5][8] The newer version did not require any food.[2]


The spell was attributed to Netherese arcanist Stoca in −1794 DR and was originally called Stoca's fauna grow.[1]


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