How much does Legendary Arrow Knights cost in AoE3?

1,500 wood, 1,500 coin, 30 seconds (AoE3: Definitive Edition 100.19.18309).

What does Legendary Arrow Knights do in AoE3?

Arrow Knight: hit points +50%, damage +50%. The game says: "Legendary upgrade for Arrow Knights."

Technology

Legendary Arrow Knights

Legendary Arrow Knights (tech ID ImpLegendaryArrowKnights) is a technology in AoE3: Definitive Edition 100.19.18309 costing 1,500 wood, 1,500 coin, 30 s to research at the Nobles' Hut. Effect: Arrow Knight: hit points +50%, damage +50%.

Quick answers (3)

How much does Legendary Arrow Knights cost in AoE3?: 1,500 wood, 1,500 coin, 30 seconds (AoE3: Definitive Edition 100.19.18309).
What does Legendary Arrow Knights do in AoE3?: Arrow Knight: hit points +50%, damage +50%. The game says: "Legendary upgrade for Arrow Knights."
What is the tech ID of Legendary Arrow Knights?: ImpLegendaryArrowKnights.

Legendary upgrade for Arrow Knights.

What it does

Arrow Knight: hit points +50%, damage +50%

Cost: 1,5001,500
Research time: 30 s
Game ID: ImpLegendaryArrowKnights

Researched at

Nobles' Hut

Needs

Champion Arrow Knights

Civilizations

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