Eternal2

When this ship sinks, do not remove it from the game. Instead, place it docked with no masts at your home island; its crew remain onboard but any treasure or other cargo (including equipment) that it carried is treated as if the ship sunk normally. You may repair the ship as normal at your home island. When a sea creature with this keyword is eliminated, do not remove it from the game. Instead, place it docked with no segments at your home island; it may then be given repair actions (like a normal ship) until it leaves your home island.

Scorpion4

A ship with this keyword printed on its deckplate has a moveable blade that can slash its enemies. After a scorpion ship has completed a move action or a shoot action, if it has not rammed an opposing ship this turn it may attack any (one) opposing ship that it can touch with its blade, as a free action. The attack automatically succeeds and eliminates one mast from the target (no die roll is required, and no ability can prevent it). The target is now pinned and can be boarded (sea creatures can be pinned but not boarded); the scorpion ship is not pinned. The blade functions even if this ship is derelict.