Omnitron play Villain cards after 0 HP?

Good question. When I think of this theme wise I'd say that the deck gets removed as well as the deck represents omnitron. just my 2cents

As far as I can tell, either the deck remains in play, and thus cards keep getting played. or Omnitron is in need of an errata.

I thought not.  I'm not entirely sure though.  If he does keep playing villan cards,  how and what does he play?  I mean,  he's no longer available for flipping, so does he play 2 a turn?  1 a turn?  1 + 1 from the trash?  Presuemeably killing Omnitron removes the added difficulties of his advanced mode?  I've wondered about this myself, but it hasnt really made huge amounts of difference.

If the deck were to not be removed, then it would continue playing one card during the play phase.  Any card that says "Omnitron does this" would not be valid as there is no Omnitron (even though it's stated in the lore that Omnitron exists in all the devices he makes, this is not stated anywhere in the rules or the cards, so there is no Omnitron to do something).  The play a card at the end of turn, as well the draw a card from the trash at end of turn, are part of the Omnitron game text.  When Omnitron is removed, the gametext no longer exists, and thus no longer continue to play.  As well, the advance mode stuff goes away as it is no longer in play.  Given how complicated the results are, either "remove all villian cards except devices from play" has a slightly different meaning (not very good, as this will cause confusion), or an errata is needed, saying that all villain cards except device cards in play are removed from game (much clearer).  Unless, of course, all this extra complexity is desired.

Until we get an official ruling I'll play that once he is destroyed everything but the devices in play get removed including the deck. My theory is that if the heroes destroy omnitron but leave his devices behind thinking that they pose no threat would allow the devices to put him back together.

If we're thinking of it from a story perspective (contrary to the other thread debating Wrest the Mind), Omnitron is the one actively creating the drones and components. After Omnitron itself is dead, it wouldn't be able to make more.

Alrighty, folks.  Here's the answer.

When Omnitron is reduced to 0 or fewer HP, the Villain Character Cards are gone, but the Villain Deck is still in play.  The rules say that on the Villain Turn, regardless of which Villain you're fighting or anything like that, you play the top card of the Villain Deck.  Now, Omnitron can play a second card each turn, or pull a Drone or Component from its Trash into play, depending on what side of the Villain Character Cards is up.  However, if there IS no Villain Character Card, those effects do not happen.  But there is nothing to stop the top card of the Villain Deck from being played each Villain Turn.

So, in short, when Omnitron itself leaves play, the Villain Deck continues to produce a card each turn, until there are no Devices in play.  Omnitron's programming is in all of its robotic creations. 

Does that help?

That helps to keep it complicated, yes, heheheheh.  Not having an Omnitron deck, I can't really take a look at what cards are contained, but I'd say it's safe to assume that any card that has a line mentioning Omnitron at this point would basically have that line ignored, such as "restore X HP to Omnitron" or "Omnitron deals target X damage."

Yeah, my brother got it, along with Voss.

That's one of the rule clarifications I've got in that PDF collection of rules clarification I posted about a while back.