One of the major, and most fun, types of Dominion deck is a cards/action two-card engine, the most vanilla example being Village/Smithy. (As a side note: do we have a name for this besides "cards/actions two-card engine"? I think we need one. If I say cards/action engine, do people understand that as being the village/smithy type, rather than the Laboratory type?).
Unfortunately, these decks also, well, kind of suck. Particularly in Province games. They're very difficult to make competitive with big money.
There are a few ways that they can be made more competitive, most of which we have examples of already:
1. Include +buy as part of the engine (Wharf, Council Room, and Worker's Village (and Festival, maybe) provide this)
2. Include +money as part of the engine (Fishing Village, Bazaar)
3. Include an attack as part of the engine (Torturer, Rabble)
4. More efficient card drawing (Wharf, Council Room)
So an interesting aspect of that is that both (all? We might count Witch or whatever) of the "engine + attack" cards are on the +cards side of the engine -- they're Smithy variants. What if the attack were on the Village side of the engine?
An attacking village would probably want a few different features:
1. Since it's easily spammable, it probably doesn't want to be an accumulative attack. Like Militia, it should probably be just "it hurts you once, and then you're done." The only easily spammable accumulative attack I can think of is Familiar, which is balanced by the Potion buy and the eventual run-out of Curses.
2. It probably does not want to accumulate well with Torturer or Rabble. Village/Torturer doesn't need any help.
3. Since we don't want to price the engine out of the roof, we probably don't want a very severe attack. If the card gives you all of +1 Cards/+2 Actions, and an attack, its minimum price is $4, and it could go up.
So:
Fortified Village
Action - Attack
Cost: $4
+1 Card
+2 Actions
Each opponent with 5 or more cards in his hand reveals his hand. If he has two or more cards with the same name in his hand, he discards one such card.
Whaddya think? A chance of a Cutpurse effect in the early game (if your opponent has 1 or fewer Estates, most likely). In the later game, a chance of a worse attack. Barring weird situations (Council Room or whatnot), only affects an opponent once in a turn.