Ruined Treasure Map: Trash this and another Ruined Treasure Map. If you do, gain nothing. That didn't work out so well.
I think you mean to say: Gain 4 copper, put them on the top of your deck.
Ruined Jack of All Trades: Reveal the top card of your deck, and discard it. Gain a copper. Draw until you have 4 cards in hand. You may discard a card from your hand.
Ruined Watchtower: Draw until you have 4 cards in hand. Reaction: When you gain a card, you may reveal Ruined Watchtower. If you do, you may choose to either trash the Ruined Watchtower, or put it on the top of your deck.
Ruined Minion: +1 Action. All other players discard their hand and draw 5 cards.
Ruined Duchess: +1$. If this card is on top of the Ruins pile, you may choose to gain it when you gain an Estate.
Ruined Council Room: All players draw a card.
Ruined Nobles: Choose one: +1 Action, or +1 Card.