Voodoo + Sadism + PU not working?

[Chapuz]

When you PU a doll, it supposedly "damages" the new doll. That's why the opponent gets the PU damage bonus. So why don't I get healed when I PU a damagedd doll with Sadism?
I was imagining that Voodoo + PU decks could get an extra bonus from winning in full HP if a Sadism was played...

[cg]

From what I remember, PU doesn't actually damage things, and voodoo has a hidden "does damage to opponent when copied" ability that was added specifically to make voodoo/PU work still.

If I am remembering correctly, I am more inclined to explicitly state that ability on the card than to buff voodoo. Though if you think voodoo needs buffed, feel free to make that argument.

[Chapuz]

Well, it would be consistent to make it work like if it damages the doll, right? At least that's what I thought when I tried this idea.
Note: This is NOT because it's one of my fav cards, okay?

[cg]

PU shouldn’t make voodoo hurt opponent, though. It copies it, it doesn’t make a new one and damage it. The damage was a bonus voodoo-specific function that had to be explicitly added to make voodoo usable. When you PU a damaged martyr, it doesn’t double its buff.

Based on that, in my opinion, the problem here is that voodoo needs the card text “damages opponent per missing hp when copied”

[Chapuz]

If we're talking about the Voodoo status and not Voodoo Doll card by itself, it would make it understandable enough.