Does it matter who pays?
Matt
"6.5.3. Rescue a Vampire from Torpor
The cardless action costs 2 blood, which can be paid by the acting
vampire or the rescued vampire, or the cost may be split between
them."
Cavalier: "Once per turn, when this vampire successfully performs an
action that costs 1 or more blood..."
Cavalier doesn't say "...that this vampire pays."
So, by card text, yes Cavalier can be used, and no it doesn't matter
who pays it.
-John Flournoy
Correct.