Synergy
From DominionStrategy Wiki
Synergy describes any time two or more cards make effective use of each other's abilities, or cover for each other's disadvantages, but not in a powerful enough way to win a game with just those cards alone (as with combos). The split pile cards in Empires are designed to synergise with each other.
Split pile synergies
- Encampment/Plunder
- Patrician/Emporium
- Settlers/Bustling Village
- Castles
- Catapult/Rocks
- Gladiator/Fortune