Viking Schemes
Supply
Synergy
Medium (72)Engine 100%Duration 100%Slog 80%
Variety payoff + broad gainer/+Buy — Wealthy Village + Berserker
Fairgrounds/Museum/Horn of Plenty want many differently-named cards; Workshops and +Buy make one-of shopping cheap.
Per-gain payoff + multi-gainer — Cauldron + Berserker
Livery/Garrison/Labyrinth/Commerce only shine when you gain several cards per turn — Workshops/Horse/Loot gainers and +Buy provide those gains.