2 creature templates, from Mummy to Mutant Cryptid.
Adjustment
All types of creatures can have their corpses preserved and rise as mummies.
Lesser Despair (aura, divine, emotion, enchantment, fear, mental) 30 feet. Living creatures of the mummy creature's level or lower are frightened 1 while in its despair aura. They can't naturally recover from this fear while in the area but recover instantly once they leave.
Adjustment
You can turn an existing, living creature into a mutant cryptid by completing the following steps.
Increase the creature's level by 1 and change its statistics as follows.
Mutant Cryptid Abilities
A mutant cryptid should typically either have all four the following abilities or just two abilities, not including unusual bane.
You might decide to give a specific mutant cryptid a unique mutant ability created just for that creature (or copied from a different creature). Such an ability replaces one of the three abilities that increases the monster's power, or replaces unusual bane if it's detrimental.
Unusual Bane The mutant cryptid gains an unusual weakness to a specific bane—such as aversion to saffron or to the sound of children's laughter. The first time each round the creature comes within 15 feet of its bane or interacts with its bane (such as stepping over a line of saffron or hearing children laugh) it takes an amount of mental damage equal to its level and must attempt a Will save with a hard DC for its level. On a failure, it's stunned 1 (stunned 3 on a critical failure).
Explosive End The mutant cryptid's death reveals one last surprise as it explodes into flame, acid, a pile of toxic goop, or something stranger still. Choose a damage type appropriate for the mutant cryptid. When it dies, it explodes, dealing 1d6 damage of the chosen type to each creature in a 10-foot emanation, with a basic Reflex save against a standard DC of the creature's level. The damage increases by 1d6 at 3rd level and every odd level thereafter.
Shifting Iridescence (abjuration, magical) Whenever the mutant cryptid takes energy damage to which it isn't resistant or immune, after taking the damage normally, it gains resistance 5 to that damage type. If it had a resistance to a different damage type from shifting iridescence, it replaces the old resistance with the new resistance. The resistance increases to 10 at 9th level and 15 at 17th level.
Marrowlance The mutant cryptid can make wicked spears of bone erupt from its body. The creature can make marrowlance ranged unarmed attacks. Use the highest attack modifier from the creature's highest ranged Strike, as well as the damage from that Strike. If it has no ranged attacks, use moderate accuracy and low damage for the creature's level. Marrowlance unarmed attacks have a range of 60 feet and the versatile S trait.