Do not send a card under any circumstances; no contact is exactly that.
I have previously found the following from
www.halcyon.com/jmashmun/npd/index.html that may help you as well (it certainly did me):-
"Babies love you back, but adult narcissists are like vampires: they will take all you can give while giving nothing back, then curse you for running dry and discard you as a waste of their precious time.
"It is also essential that you keep emotional distance from narcissists. They're pretty good at maintaining a conventional persona in superficial associations with people who mean absolutely nothing to them, and they'll flatter the hell out of you if you have something they can use or if, for some reason, they perceive you as an authority figure. That is, as long as they think you don't count or they're afraid of you, they'll treat you well enough that you may mistake it for love. But, as soon as you try to get close to them, they'll say that you are too demanding and, if you ever say "I love you," they'll presume that you belong to them as a possession or an appendage, and treat you very very badly right away. The abrupt change from decent treatment to outright abuse is very shocking and bewildering, and it's so contrary to normal experience that I was plenty old before I realized that it was actually my expression of affection that triggered the narcissists' nasty reactions. Once they know you are emotionally attached to them, they expect to be able to use you like an appliance and shove you around like a piece of furniture. If you object, then they'll say that obviously you don't really love them or else you'd let them do whatever they want with you. If you should be so uppity as to express a mind and heart of your own, then they will cut you off just like that, sometimes trashing you and all your friends on the way out the door. The narcissist will treat you just like a broken toy or tool or an unruly body part: "If thy hand or thy foot offend thee, cut them off" [Matt. 18:8]. This means you".
"But, even though children of narcissists don't automatically become narcissists themselves and can survive with enough intact psychically to lead happy and productive lives away from their narcissistic parents, because we all love our parents whether they can love us back or not, children of narcissists are kind of bent "You can't get blood out of a stone," but children of narcissists keep trying, as if by bonding with new narcissists we could somehow cure our narcissistic parents by finding the key to their heart. Thus, we've been trained to keep loving people who can't love us back, and we will often tolerate or actively work to maintain connections with narcissistic individuals whom others, lacking our special training, find alienating and repellent from first contact, setting ourselves up to be hurt yet again in the same old way. Once narcissists know that you care for them, they'll suck you dry demand all your time, be more work than a newborn babe -- and they'll test your love by outrageous demands and power moves. In their world, love is a weakness and saying "I love you" is asking to be hurt, so be careful: they'll hurt you out of a sort of sacred duty. They can't or won't trust, so they will test your total devotion. If you won't submit to their tyranny, then you will be discarded as "no good," "a waste of time," "you don't really love me or you'd do whatever I ask," "I give up on you." (Note: In many instances, narcissists' demands are not only outrageous but also impossible to fulfill even if you want to please them. Plus if you actually want to do what they want you to do, that would be too much like sharing, so they won't want it anymore.)
If you've had a narcissist for a parent, you are probably not afraid of dying and going to hell -- you have lived hell on Earth. Narcissists cannot be satisfied and do a tremendous amount of damage to their children and partners in their relentless demand for a perfect outer appearance to reflect the perfect inner image that obsesses them. Kyrie eleison".
They have made the terrible choice not to love.
It is not possible to have any sort of relationship with a narcissist to my mind.
I would suggest you also look at the link entitled "Daughters of Narcissitic Mothers" and read "Children of the Self Absorbed" written by Nina W Brown.