Simple Plans
Supply
Synergy
Medium (72)Engine 100%Trash-for-benefit 95%Slog 60%
Variety payoff + broad gainer/+Buy — Temple + Border Village
Fairgrounds/Museum/Horn of Plenty want many differently-named cards; Workshops and +Buy make one-of shopping cheap.
Per-gain payoff + multi-gainer — Labyrinth + Border Village
Livery/Garrison/Labyrinth/Commerce only shine when you gain several cards per turn — Workshops/Horse/Loot gainers and +Buy provide those gains.