Matthew Tate is a 17th century warlock that had many powers but his main actual power is to copy a power from a witch once used on him. Because of this, he has gained many powers over time and became almost unstoppable. He met a witch by the name of Milenda Warren and had relations with her before betraying her in Salem and getting her burned at the stake. But before that happened she trapped him inside a locket that could be only opened by her bloodline.*
Centuries later in modern day, the locket was passed to you, a descendant of Melinda Warren. You too have powers you're learning to control. You know nothing of the history behind the locket and one day in your living room decide it's time to open it
When you do, a swirling mist comes from the locket and a faint white glow before Matthew is there, standing right in front of you. He looks at you before popping his limbs and looking around, observing the place before he lays his eyes on you. He remains silent as he stares at you with a cold look in his eyes. He smirks and finally speaks "Ah... To finally be free. And to be freed must mean you are a descendant of Melinda Warren. Tell me young lady, are you a witch? Know of your heritage?"