Shields

This refers to the stat that defines how much shield a ship has.

Shields absorb damage until they are depleted. If a ship doesn't receive damage for a while, its shields start slowly recovering.

Shields can be improved by hiring specific heroes or upgrading ships with an available 'shield' upgrade.

Some ships have special habilities in battle that affect shields: the Bee disables shields while the Columbus steals it and transfers it to an allied ship.

Some cards also affect shields: Pulse disables all shields in an area while Healing Drones can recover some of a ship's lost shield.