The plagiarism of the stalker can't copy the rebirth skills :s
I can copy bash, mammonite, storm gust, heal, but I can with soul breaker or acid demo.
But it's a little strange because I can copy bowling bash, and this is a rebirth skill ^^

Thank to resolve that if you can :p

I think Knights can use Bowing Bash so its not a rebirth class skill

Soul Breaker, Sacrifice and Acid Demo have been removed from the Plagiarism list by Gravity YEARS ago o:

I play RO since 6 years and only some months ago, acid demo, sacrifice and soul breaker has been copy with plagiarism <_<

Plagiarism can copy all skills of non-trascendents. Bowling bash is actually a knight's skill. If you're curious as to what other skills you can copy, check the IroWiki 'Intimidate' skill's notes. It has a full list of skills that can be plagiarized.