Killing Compra  

Killing Heretic pastor Compra (located in the back of Dark Altar) is the easiest, fastest way to get experience at the higher levels. Infact this may be the fastest of any levels 140-161. Compra is hands down  the hardest boss in game  

step 1 . Opening the "Dark Altar" – Located at the bottom of mondshine , on the left side of the map. 

step 2. You will need a fellowship party to enter. Making a fellowship requires 2 people (or more) in a party. Go to your Icon ( top right ) , right click it and press "Change to Fellowship". You are now a member of a fellowship party. 

step 3. Now you enter the Dark Altar as leader of the fellowship, however this can sometimes be glitchy and if other members try to enter a box will come up basically telling you you’ve already done raid. If this happens, right click your Icon again, as you were changing the party to fellowship, scroll down the bar and click manage fellowship (only leader is able to do this), right click another member of your party in the box that comes up, and click "Delegate fellowship leader" on that person, now that person should be able to go into the altar. 

step 4. When your party is inside the Dark Altar, click the face in front of you. This will bring up a time limit to kill the first raid boss. You can either go through and click the pillars and collect catalyzers that drop from monsters (this makes him a lot easier), or you can run through and kill him (he is difficult for some). Basically you will go upwards every chance you get until you see a giant guard, his name is Heretic Drillmaster Tophaz. This monster drops Knight Raid gear (All pieces) the number of boxes he drops (you open for the armor and weapons) depends on how many people are inside of your fellowship. 

step 5. Once you’ve defeated tophaz, the door in front of him should open up and you will be presented with many different "pillars" along the way. The path to the next boss does not change as far as directions go, you basically go straight through. Click on the following pillars to open gates, the first set, click on the closest pillar to where you are coming from (AKA the first pillar in the line) the portal will open, the next set click the first pillar on the right, next set is first pillar on the left, then the last pillar is second pillar in on the left. These do sometimes have traps in them, but these are what you click to open the gates. 

step 6. After you’ve passed all of the gates, a new type of mob will come instead of guard looking things , they look like bigger trainers from the chapel. On the sides of these monsters, there are "coffins". Click on the coffins and they will drop little items, pick them up and they will make mobs dissapear (not all of them) after the boss monster "joshe". Once you’re done killing all of the "big monkeys" you’ll notice another gate, to open this gate go back to the four pillars you passed and have either 1 party member on each pillar, ready to click it or have two on each side. you have to press all 4 of them almost at the same time. If you’ve done this correctly the ground inbetween the pillars will light up and summon another "big monkey" , this is the second raid boss. Joshe drops Titan raid gear. Same box rule applies for Joshe as Tophaz 

step 7. Once you’ve killed Joshe, you’ll find the door has opened and now whoever has the items from the coffins (the leader) should step through the gate and a lot of the monsters will dissapear, run through this area killing all of the trainers and STOP once you get to a red floor. 

step 8. Passing this red floor can be very difficult if people in your party aren’t good at directions, you can either chance it and have everyone run straight across to the other side or kill monsters for the "secret ceremony" quest here. There are also traps and such under these "steps". Sometimes huge groups of monsters will spawn if you step on the wrong one. 

step 9. After you pass the red floor, another "big monkey" will be standing there, there are a total of 5 of these within the dark altar, they are fairly easy to solo and drop rogue raid armors and weapons. 

step 10. Make a left after the monster and you will find one of the 3 Heretics needed for "the altar of darkness conquest" and the secret ceremony quests. These monsters also drop the items needed to open the gate to compra. These hit VERY hard so try to keep them snared. after killing the first one, pick up the red heart then head straight. You will come to a fork in the road, either make a left or right (whichever one you feel like doing) to come to the other monsters that drop items for compra , kill them and head back to where u came from to do the other one also. Upon going to the monster on the far left you will pass a big "head" and a gate. After killing these 3 monsters , you should have a wing of eagle, koleidascope and red heart in your quest item bag. Click on the head and the door will open. 

step 11. There will be 3 boss monsters inside here, 2 of the "big monkeys" from after the red steps and Compra. In my opinion killing those two first is much easier so you can completely focus on Compra. After killing these two monsters, get ready to solo ( if boosting it ) Compra. Pot up (minerals candies ect) and if you have a snare that should be the first thing you use (COMPRA HITS 17K DEADLIES). This monster has about 3x the HP of the other raid bosses. Change your fellowship experience to "Battle" if you plan on soloing/boosting it. Compra gives 90b+ experience! Once compra reaches about 25% HP he will summon two more "big monkeys" like after the red steps, have your party member take care of these. Once you kill compra, he drops special boxes, these boxes contain mage raid and Night Shadow raid gears. 

Credits go to twinswordx.