The Werecreatures - Strengths and Weaknesses

There are a number of things that werecreatures are strong or weak to, and the following list covers the general idea. However, you are encouraged to give your character his own strengths and weaknesses, separate from this list.
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Strengths
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Formidable
Werecreatures are bigger and much stronger, physically, than any of the other species. Their physical strength is not usually equally rivaled by any other species, except, perhaps, an ancient vampire. But from the very birth of a new werecreature, whether by procreation or by the transformation, they have access to this strength without needing to learn it. They simply require training to hone their skills and increase their control.
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Hybrid Form
Unlike shifters, werecreatures not only fully transform into their animal form, but they can transform into a hybrid between human and animal - basically an anthropomorphic creature that is a combination of both human and animal. This increases their strength and skills without sacrificing their human thought or ability to communicate.
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Resistant
Because of their high metabolism and their strength, werecreatures are much less susceptible to human illness, including serious diseases such as cancer or STD's. They can be around sick people all day without even catching a cough. They are also resistant to, but not immune to, animal illness.
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Weaknesses
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Silver
Werecreatures are most susceptible to silver weapons. Even small amounts of silver, such as what might be in jewelry, causes pain. Contact with the metal causes burns to the skin, as if the werecreature had touched a burning stove. The longer the contact lasts, the worse the burn gets. If ingested, or silver is introduced to the blood stream through a protrusion, the werecreature can become extremely ill, and even die. It is imperative that wounds from silver are treated by a healer immediately, because magic is the only way to expel silver from the body. Once the metal has been expelled from the body, the body heals at a mortal rate.
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Dual Mind
The magic that allows them to exist is not natural, therefore the human mind and the beast mind are not melded together as one like with the shifters. They are separate mentalities, which can cause extra strain on the werecreature, and in some cases cause insanity. The humanity of one's mind and the animal side, known often as "the beast", do know the other exists and can communicate to the other. It's as if the werecreature's mind was split, and all of their instincts, animalistic desires, and darkness had become a separate part of their mind. This is not dissociative identity disorder, but more like the little voice in the back of one's mind.
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The Lunar Cycles
Werecreatures are slaves to the lunar cycle. They cannot control their transformations during full moons, and must kill in order to be able to transform back to their human selves. These kills do not have to be human, and can also include other animals. During new moons, werecreatures' powers and strength are at their weakest point, and the werecreature cannot even transform. During super full moons, their mental state disintegrates and they practically go insane from the combined rush of instinct, emotion, and hormones.