I quite like that one, personally for me, I would change the last line to.
"However we could end it too."
There also feels a little awkward to me at the middle sentence starting at "With my medallion..." to "all that exists"
"Love, happiness, and family: humankind must uphold these three core values lest we be cast away from the light. With the Medallion, we have the means to destroy the curse that threatens all that exists. We, humankind, are meant to be the saviors of the world.
However, we could end it too."
I wasn't too sure on whose blurb is the current one so I went with the first one that looked like it. Here is my own for my story, any help is appreciated.
Wounded in action, Eric struggles to come to grips with the situation of his new life, unable to find comfort in friends and family he begins to play a new game that is released.
Thoroughly immersed in the new game he rediscovers himself and slowly begins to pick up the shattered pieces of his life.