Deal the most damage
Players can use buy potbs Doubloon and it is a very good skill. You can use it from 1k fighters after 75, but it is still not the best advantage. A Dagger Ninja surely can make his target poison. With Rolling Dagger, the poison will last 3 more hits. This means your enemy will suffer more damage. Ambush is needed for both PVP and PVM. Extra damage from stealth and backstab attack makes it main skill, which will deal the most damage.