In ONE, there are a total of 13 ships that appear.
It is true that the higher the tier, the higher their overall abilities are.
However, there may be differences regarding ATK and DEF based on durability and upgrades.
Ships have an intransitive relationship which means one counters the other and this can affect a battle as well.
So it is possible for a lower tier ship to defeat a higher tier ship.
In conclusion, it is important to own a high tier ship, but it is also important to scout before battle to get a glimpse of the enemy’s combination and counter that with your own combination and strategy.