Step 0: Bane Signet
The 
 grants you a passive boost to your 
Power. Its active effect (when clicked) will inflict a high amount of CC (300 CC) on your target and share the passive with your allies for 10 seconds through 
. Therefore, you want to do the following:
If a Mistlock Singularity is present, cast  there to share its buff right before you run into the fight, then take the singularity.  
If a boss starts with a break bar, you should cast  at the start to help with breaking the bar while also sharing its passive to your allies to enhance their burst damage as well.  
If a boss does not get a break bar early into the fight, you can use  before the fight starts to share the passive and start right with your burst when the boss spawns.  
Step 1: Greatsword Skills
The first step consists of using 
, 
 and 
 off-cooldown (in this order of priority if multiple come up at the same time).
 and  are your 2 biggest damaging weapon skills on the Greatsword.  
Make sure to be in the hitbox of the enemy whenever possible for .  deals additional damage when casted inside a hitbox.  
 will deal more damage if you are in the hitbox while there are extra enemies around.  
Step 2: Virtue Skills and Whirling Light
Next up, it is time to incorporate 
 and 
.
Step 3: Sword of Justice
Now it is time to incorporate another strong utility skill, 
.
Step 4: Sword skills
This last step will not contribute much to your consistent DPS but can increase your burst by a good amount which is especially important in fights with shorter phases. We will use 
 and 
 at the start of the fight, then swap to Greatsword and do our regular rotation.
The opener should now look like this:
Swap to Greatsword