Just realized in a game I was playing that had Scepter and Kiln - you can use scepter on kiln to gain two different cards (Throne Room, can also let you gain two cards, but one of them would be Kiln itself)! Play Kiln and then some other card, gaining a copy of that, and then in your buy phase, play Scepter to replay Scepter, and then you can gain a copy of whatever your next card is. Normally, of course, that would be a Treasure card, but it could also potentially be a Night card. You could also use Villa's on-buy effect to Kiln another Action card