Animal Growth

Level: Drd 5, Rgr 4, Sor/Wiz 5
Components: V, S
Casting Time: 1 standard action
Range: Medium (100 ft. + 10 ft./level)
Targets: Up to one animal (Gargantuan or smaller) per two levels, no two of which can be more than 30 ft. apart
Duration: 1 min./level
Saving Throw: Fortitude negates
Spell Resistance: Yes
A number of animals grow to twice their normal size and eight times their normal weight. This alteration changes each animal’s size category to the next largest (from Large to Huge, for example), grants it a +8 size bonus to Strength and a +4 size bonus to Constitution (and thus an extra 2 hit points per HD), and imposes a –2 size penalty to Dexterity. The creature’s existing natural armor bonus increases by 2. The size change also affects the animal’s modifier to AC and attack rolls and its base damage, as detailed on Table 2–2 in the Dungeon Master’s Guide. The animal’s space and reach change as indicated on Table 8– 4: Creature Size and Scale (page 149), but its speed does not change.
The spell also grants each subject damage reduction 10/magic and a +4 resistance bonus on saving throws. If insufficient room is available for the desired growth, the creature attains the maximum possible size and may make a Strength check (using its increased Strength) to burst any enclosures in the process. If it fails, it is constrained without harm by the materials enclosing it—the spell cannot be used to crush a creature by increasing its size.
All equipment worn or carried by an animal is similarly enlarged by the spell, though this change has no effect on the magical properties of any such equipment. Any enlarged item that leaves the enlarged creature’s possession instantly returns to its normal size.
The spell gives no means of command or influence over the enlarged animals. Multiple magical effects that increase size do not stack, which means (among other things) that you can’t use a second casting of this spell to further increase the size of an animal that’s still under the effect of the first casting.

Source: Player's Handbook

Table 8–1: Attack Size Modifiers

Size Size Modifier
Colossal –8
Gargantuan –4
Huge –2
Large –1
Medium +0
Small +1
Tiny +2
Diminutive +4
Fine +8

Increasing Weapon Damage By Size

Table 2–2: Increasing Weapon Damage by Size

Number of Size Categories Increased
Medium Damage ~One Two Three Four
1d2 1d3 1d4 1d6 1d8
1d3 1d4 1d6 1d8 2d6
1d4 1d6 1d8 2d6 3d6
1d6 1d8 2d6 3d6 4d6
1d8 2d6 3d6 4d6 6d6
1d10 2d8 3d8 4d8 6d8
1d12 3d6 4d6 6d6 8d6
2d4 2d6 3d6 4d6 6d6
2d6 3d6 4d6 6d6 8d6
2d8 3d8 4d8 6d8 8d8
2d10 4d8 6d8 8d8 12d8

Table 8–4: Creature Size and Scale

Size Creature Example Space Natural Reach
Fine Fly 1/2 ft. 0
Diminutive Toad 1 ft. 0
Tiny Cat 2-1/2 ft. 0
Small Halfling 5 ft. 5 ft.
Medium Human 5 ft. 5 ft.
Large (tall) Ogre 10 ft. 10 ft.
Large (long) Horse 10 ft. 5 ft.
Huge (tall) Cloud giant 15 ft. 15 ft.
Huge (long) Bulette 15 ft. 10 ft.
Gargantuan (tall) 50-ft. animated statue 20 ft. 20 ft.
Gargantuan (long) Kraken 20 ft. 15 ft.
Colossal (tall) Colossal animated object 30 ft. or more 30 ft.or more
Colossal (long) Great wyrm Red Dragon 30 ft. or more 20 ft.or more
Unless otherwise stated, the content of this page is licensed under Creative Commons Attribution-ShareAlike 3.0 License