I need some clarification. I've seen a few cases where a villain card will say that it destroys X or H number of Hero Ongoing/Equipment cards. For example, The Ennead's Ancient Magicks.
Now is this X number Hero Ongoing/Equipment cards total, or X number Hero Ongoing/Equipment cards *per Hero*?
Stuff like that always affects every possible target unless it specifies otherwise. It's like the Wraith's Mega Computer - it says it reduces all Environment damage by one, so that would reduce all damage dealt by the Environment, even in cases where the Environment is damaging a villain target, dammit ;).
Okay, now I'm confused because you stated affects every possible target.
So let me rephrase this:
Villain is playing against four heroes. All four heroes have 3 pieces of equipment, for a total of 12 pieces of equipment spread across the heroes.
Villain card says it destroys 2 pieces of (unspecified) target hero equipment. Which of these is accurate:
- 2 out of those 12 pieces gets destroyed, meaning two out of the four heroes lose 1 piece of equipment (2 pieces total) - Each hero loses 2 pieces of equipment, for a total of 8 pieces out of the 12 on the table (2 pieces each).
"2 out of those 12 pieces gets destroyed, meaning two out of the four heroes lose 1 piece of equipment (2 pieces total)" is very nearly correct. If you wanted you could have one hero lose 2 pieces of equipment.
Generally the rule of interpretation is: do the thing the card says and only the thing the card says. There are a few addendums like "any time you see 'would' add an 'instead,'" and some stuff to sort out timing, but doing precisely the thing the card says - no more and no less - will get you 90% of the way there. In this case, if it meant for each hero to destroy 2 pieces of equipment it would read something like "Each hero destroys 2 Equipment cards."