Thunderbolt

Thunderbolt is a highly charged, long-range cannonball that causes a lightning bolt to strike where it lands. Very effective against ships masts and sails, but can also cause considerable hull damage. The ability to use these rounds becomes available at Cannon Skill level 12. Increasing the Thunderbolt ability will increase the overall damage caused. They can be purchased at any gunsmith. Cost - 12 coins (per 25 Thunderbolt rounds)

To use Thunderbolt, be stationed at a cannon and press 5 or click. After firing one round, it will take quite a few seconds to reset.

Strategy
The sheer range of this round makes it very effective at engaging and doing large amounts of damage while being out of range of enemy counterfire.

Game Note
The thunderbolt is the farthest range cannon ammo in the game so far.

Several Skeleton enemy ships also use this cannon shot, such as Phantoms, Storm Reapers, Death Omens and the Spanish Undead and French Undead fleets.