Rank

Each ship has 6 levels of rank.

Each additional rank level gives that ship additional capacity for assigning Expert Items. Stronger ships give more capacity than weaker ships.

Additionally, each rank level increases ship damage.

Rank Level	Damage Increase	Additional	Cost
1	2%	Unlocks item slot 1	10 evolve stones + 20,000 gold
2	4%		20 evolve stones + 40,000 gold
3	6%	Unlocks item slot 2	30 evolve stones + 60,000 gold
4	8%		40 evolve stones + 80,000 gold
5	10%		50 evolve stones + 100,000 gold
6	12%		60 evolve stones + 120,000 gold