Quote Originally Posted by TheOOB View Post
It's a class feature of the warlock, not a power. You pick one class in 4e, and you multiclass by picking feats you gain some powers of another class in exchange for powers from your own class. There is no way to gain features from another class unless it is specifically in the multiclass feat.
Thank you.

It makes me sad, but thank you for being polite in clarifying that .