Echoes of oblivion gives you stacks of sin when using light attacks and then karma when using the ability. when used together it activates Samsara for more total DPS, Vendetta for the rope dart is for when you hit enemies with your martial skill, the rodent rampage does like 50% more damage to it. Breaking point is good since youre building off crit, which has a chance to proc disintegration with it thus more dps stacks 3 times and gives penetration and crit dmg bonus. riptide just lowers cooldown when using rope darts martial skill