"Only usable if this vampire blocks" >>> blok musi być udany.
napewno?
bo W przypadku Change of Target jest napisane "blocked" (aspekt dokonany) a przy Hard Case "blocking" (niedokonany)
Change of Target
Only usable if this minion is blocked, before block resolution.
Unlock this acting minion, and the action ends (unsuccessfully). This minion cannot perform the same action again this turn.