Blacksmith
Ranged Damage Technology
Increase the ranged damage of all arrows, bolts, and emplacements by +1.
Elzbach Palace
Slate and Stone Construction: All buildings gain +5 fire armor.
House
Border Settlements: Increase House line of sight by 7 tiles and improve their construction speed by 500%.
House of Learning
Reinforced Foundations: Villagers and Infantry can garrison inside Houses for protection. Houses gain garrison arrows and +50% Health.
House of Wisdom
Fertile Crescent: Reduce the cost of Economy buildings and Houses by 30%.
Madrasa
Court Architects: Patronage of the finest builders increases all building health by +30%.
Monastery
Devoutness: Inspired Villagers gather resources +5% faster and construct buildings and defenses +25% quicker.
Varangian Arsenal
Ranged Technology
Increase the ranged damage of all arrows and bolts by +1.