The Trench Maw

Exhaust it while paying a cost to produce one steam of this fleet (601.4). It is ready again in your stoke phase.

In your supply phase: look at the top 2 cards of your hold. Draw one; put the rest on the bottom.

When your opponent attacks, each of your crew in a battle adds its hull left to your side instead of its firepower; plating doesn't count. In your own turn your crew fight with firepower as usual (704.2c).

A card's or an ability's damage to your mothership is 1 less, and so is the damage a battle deals to it: a battle is one source. Damage of 1 or less does nothing (302.6a).

The higher initiative starts the first game of a match. In every sortie phase it gets the first chance in each window, dispatches last and assigns all battle damage.

Its player's hull at the start of each game. At 0 they lose.

How many cards its player draws at the start of each game, and the most they keep at the end of their turn.

Its player wins as soon as the spoils of the expeditions they claimed reach this.

Its deck must hold at least 40 cards.