AoE3 DatabaseAoE3: DE 100.19.18309 · read from the game files · unofficial

Home City card

Knight Combat

Knight Combat (tech ID HCXPKnightCombat) is a Home City card in AoE3: Definitive Edition 100.19.18309, in the decks of 1 civilization, sent from the Industrial Age. Effect: Arrow Knight: hit points +15%, damage +15%; Eagle Runner Knight: hit points +15%, damage +15%; Jaguar Prowl Knight: hit points +15%, damage +15%; Skull Knight: hit points +15%, damage +15%.

Quick answers (3)
Which civilizations have the Knight Combat card?
Aztecs.
What does Knight Combat do in AoE3?
Arrow Knight: hit points +15%, damage +15%; Eagle Runner Knight: hit points +15%, damage +15%; Jaguar Prowl Knight: hit points +15%, damage +15%; Skull Knight: hit points +15%, damage +15%. The game says: "All Knights' attack and hitpoints increased."
What is the tech ID of Knight Combat?
HCXPKnightCombat.

All Knights' attack and hitpoints increased.

What it does

Cost
Shipment1
Sent from
IV
Times it can be sent
1
Game ID
HCXPKnightCombat

In these decks

Source: techtreey.xml and the Home City files, AoE3: DE 100.19.18309 (build 25040513).