Well I dont think you should send a card, but if it will make you feel better do it and accept the disapointment if she does not respond.

I also do not think you are particularly narcissisic.
I'm the only person in my family that doesn't blame everyone else for all my problems.'
Narcissists always always blame everyone else, its never their fault!
Also, you clearly care for your sister even though she has shunned you for years. You seem to be aware of your issues, you have empathy.

I dont believe you resent your sister at all. I believe you hurt and you miss her.

Send the card otherwise you will be left wondering 'what if'