So I went through every Expedition. The ones that are currently cheaper than their other cheapest printings (using TCGplayer market price) are the enemy fetches, Darkslick Shores, Blackcleave Cliffs, Sea of Clouds, Morphic Pool, Luxury Suite, Spire Garden, Bountiful Promenade, Ancient Tomb, Cavern of Souls, Horizon Canopy, Strip Mine, Valakut, and Wasteland.
Cool Mini Or Not have a record for producing top quality board, and miniatures related games. One of their latest is the A Song of Ice and Fire Tabletop Miniatures Game, which they have launched as a two-player starter set. For those of you don’t yet know A Song of Ice and Fire are the novels which the phenomenally successful Game of Thrones TV series is based.