Summon nature's ally

Summon Nature's Ally I–IX was a series of increasingly powerful druid spells, some of which were also available to rangers and those divine spellcasters which were granted the animal domain. Some druids could cast these spells without preparation by sacrificing a different spell to channel its energy into the summoning.

Each spell summoned one or more natural creatures, including animals, elementals, fey, and magical beasts. The caster was not able to summon a creature into an environment that could not support it (for example, water-breathing creatures could not be summoned outside of water). When used to summon elemental, chaotic, lawful, evil, or good creatures, the spell itself adopted the same type as the creature.

The spells included:
 * Summon nature's ally I
 * Summon nature's ally II
 * Summon nature's ally III
 * Summon nature's ally IV
 * Summon nature's ally V
 * Summon nature's ally VI
 * Summon nature's ally VII
 * Summon nature's ally VIII
 * Summon nature's ally IX