Drawn to the raw might and power of nature, a druid creature gains the ability to change shape and cast druid spells. A druid creature’s CR increases by 2 if the creature has 7 or more HD, and it increases by 3 if the creature has 13 or more HD.
+2 on all rolls based on Wis; can use wild shape† if it has 7 or more HD (using its HD – 3 as its druid level to determine the effect of the wild shape); can cast a small number of druid spells (see Table: Cleric, Druid, and Wizard Spells Slots) using its HD as its CL; woodland stride†.
Special Attacks wild shape† (if it has 7 or more HD, using its HD – 3 as its druid level to determine the effect of the wild shape); Druid Spells can cast a small number of druid spells (see Table: Cleric, Druid, and Wizard Spells Slots) using its HD as its CL; Ability Scores +4 Wisdom; SQ woodland stride†.
Animal Companion: These rules assume the druid creature doesn’t have an animal companion. If you want to add one, select a creature from the list of a summon nature’s ally spell. The spell must have a level no higher than 1/2 the creature’s CR. Treat the companion as an additional creature in the encounter, awarding XP for defeating it as if it was not an animal companion.
Spellcasting: Simple class templates that grant the ability to cast spells as a member of the class on which the template is based only grant spells for the three highest spell levels the creature has access to. If the creature casts all of the spells of its higher levels, you can keep the combat challenging by adding lower-level spells—denoted by a double dagger (‡)—but no more than two for any given spell level.
Pathfinder Roleplaying Game Monster Codex © 2014, Paizo Inc.; Authors: Dennis Baker, Jesse Benner, Logan Bonner, Jason Bulmahn, Ross Byers, John Compton, Robert N. Emerson, Jonathan H. Keith, Dale C. McCoy, Jr., Mark Moreland, Tom Phillips, Stephen Radney-MacFarland, Sean K Reynolds, Thomas M. Reid, Patrick Renie, Mark Seifter, Tork Shaw, Neil Spicer, Owen K.C. Stephens, and Russ Taylor.