What does Captain do in AoE3?

Ships 1 Explorer's Dog; Hero: damage +50%, hit points +50%. The game says: "Improves your British Explorer in combat, gives him a powerful Swashbuckler attack and canine companion."

Home City card

Captain

Captain (tech ID HCExplorerBritish) is a Home City card in AoE3: Definitive Edition 100.19.18309, in the decks of 1 civilization, sent from the Colonial Age. Effect: Ships 1 Explorer's Dog; Hero: damage +50%, hit points +50%.

Quick answers (3)

Which civilizations have the Captain card?: British.
What does Captain do in AoE3?: Ships 1 Explorer's Dog; Hero: damage +50%, hit points +50%. The game says: "Improves your British Explorer in combat, gives him a powerful Swashbuckler attack and canine companion."
What is the tech ID of Captain?: HCExplorerBritish.

Improves your British Explorer in combat, gives him a powerful Swashbuckler attack and canine companion.

What it does

Ships 1 Explorer's Dog(unit)
Hero: damage +50%, hit points +50%

1 further effect (interface, visuals or AI) not listed.

What it hands over

1 × Explorer's Dogno train cost

Total ≈ 0 resources — units at their train cost, crates and animals at what they hold.

Cost: 1
Sent from: II
Times it can be sent: 1
Game ID: HCExplorerBritish

In these decks

BritishII×1

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