Seacraft and Witchcraft
Supply
Synergy
Medium (68)Engine 100%Slog 80%Trash-for-benefit 80%
Variety payoff + broad gainer/+Buy — Horn of Plenty + Transmogrify
Fairgrounds/Museum/Horn of Plenty want many differently-named cards; Workshops and +Buy make one-of shopping cheap.
Extra piles
Bane