Introduction
Boss Rush is instanced PVE content that first becomes available in Tier 2 (802 ilvl).
Boss Rush rewards a large amount of Leapstones (Honing Material) and Gems.
To enter Boss Rush you need a special ticket (just like Cube), and the content can be completed solo or in a party of up to 4. However, it is recommended to complete in a party since it is much easier.
How to Enter Boss Rush
To enter Cube you will need an 
Entrance Ticket: Hall of Silence for either Tier 2 or Tier 3. Completing Boss Rush in a party will require all members to have a ticket.
- Hall of Silence Tickets can be obtained from the boss on the 2nd room in Chaos Dungeons, but only if you have Aura of Resonance (your 2 daily entries).
- You can also obtain a ticket from an Entrance Ticket Chest, which can be bought from the Sylmael Bloodstone Exchange NPC.
Once you have your ticket, you can enter by going to the 
[Boss Rush] entrance in any main city.
Upon Entry you have the choice of whether to use 3 Entrance Tickets at once. Using multiple tickets simply multiplies the number of chests you get at the end by x3. However, you will miss out on EXP and some minor rewards, so it is always better to do them seperately if you have time.
How to complete Boss Rush
The goal of Boss Rush is to kill all the bosses on each stage, without the time limit running out. If you fail you will only gain rewards up to the stage where you failed.
Each cleared stage rewards you with a chest, you can also gain a bonus reward if you clear the stage with more than 20 seconds left on the timer.
- When there are 20 seconds left, you gain an Attack Speed +30% buff and Push/Crowd Controls Immunity. However, you will miss out on the bonus time reward.
- If anyone dies, they will be able to respawn after a short penality. The respawn timer increases depending on the stage.
There are a total of 15 stages and there is no break inbetween each stage.
Rewards
Clearing each stage rewards your party with a chest which is guarenteed to give a certain amount of Gems and Leapstones. In addition, there is a chance of obtaining Masterpieces when opening some of the chests.
If you manage to clear all the bosses with more than 20 seconds left on the timer, you will gain the bonus reward as well.
Tier 2 Boss Rush
Tier 3 Boss Rush
