Tips for Combat:

Prepare for Battle: Ensure you have enough ammunition, Restoration, and Repair Kit II’s.
Target: Focus on merchant ships that are actively transporting Ivory.
Strategy: Utilize a tanky ship if possible and have a plan for dealing with reinforcements.
Option 3: Plundering Foundries

Location: Scattered throughout the northwest region.
Method: Raid and plunder these locations for a chance to Skull and Bones Items obtain Ivory directly.
Advantages:

Efficient: Potentially faster if you can successfully raid and plunder.
Repeatable: Raiding can be done multiple times if the foundries respawn.
Disadvantages:

Risk: High risk of cheap Skull and Bones Items encountering strong defenses and enemy ships.