Triumph of the Bandit King
Supply
Shelters
Synergy
Medium (69)Engine 100%Trash-for-benefit 100%
Per-gain payoff + multi-gainer — Triumph + Catacombs
Livery/Garrison/Labyrinth/Commerce only shine when you gain several cards per turn — Workshops/Horse/Loot gainers and +Buy provide those gains.
Trasher + wants-to-be-trashed — Catacombs + Hunting Grounds
Fortress/Rats/Feodum/Squire-style cards want to be trashed repeatedly; trash-for-benefit cards are happy to oblige.