I thought this was an interesting kingdom that I played last night live.
Kingdom Cards: Knights, Mint, Highway, Talisman, Philosopher's Stone, Watchtower, Oasis, Warehouse, Menagerie, Courtyard
Potions, No Colonies, No Shelters. Top Knight is +2 Actions.
You open 4/3 from first seat. What's your plan?
I opened Talisman/Courtyard. I played Courtyard on turn 3, putting back my Talisman, and buying a Mint with 5 Coppers, then bought 2 Oases on turn 4. The plan was Highway/Talisman to buy a bunch of Highways, using Warehouse, Oasis, and Menagerie to draw my deck and play 3 Knights every turn. I lucked out that the second Knight was +2 Buys, so I had a couple turns where I got to grab 6 or 9 engine pieces. (I'd Minted a second Talisman on turn 5 or 6.) I ended up winning by a Duchy, having trashed a Province and 2 Duchies at various points out of my opponent's Courtyard Big Money Deck.
This was a ton of fun to build, but I don't think it would work if someone contested it. The Knights especially are super important, and even if you get the +2 Buys Knight, it cna get trashed by another Knight.