Epic Pyramid Battle (raid)

This is an information page about the Dark Pyramid, for a guide/strategies on beating it go here.
Dark Pyramid is a minigame in the Battle Arena that can be accessed by clicking the entrance to the gold pyramid in The Desert.
You can enter the Dark Pyramid 10 times a day (up to 15 with ascension perk). First extra entry can be bought for 2,000,000 crafting material. Cost increases by 1,000,000 when you buy more of them during one day up to 20,000,000 crafting material. Cost resets back to 2,000,000 at the end of the day. When doing Impossible Ascension, player must be at least level 1,500 to enter the Dark Pyramid.Fast ranged weapons are great here at low levels. The Light Element bonus is very helpful as well, as all 5 of the enemies are dark aligned.
Each tier requires 4-5 times the score of the tier below it, and the quality of the rewards increases with better tiers.
+1 - 10k	+2 - 50k	+3 - 250k
==Goal==
Deal as much damage as possible in 210 seconds (250 seconds in Worst Moon mode, 260 seconds in Apocalypse mode) for the highest possible score. (Note that killing the most monsters in this time period, while not the goal, will yield the best experience. This tends to result in a lower score, however).
==Rules==
#Monsters spawn instantly. There is no waiting time between monsters, so spawn rate has no effect.
#Your stats will be changed, namely your damage is reduced by a factor of 0.000001, or one millionth of its normal damage. Monsters have no defenses the Dark Pyramid.
#If you quit midway, you will get no additional rewards.
==Rewards==
*If you finish with 0 Bonus (less than 10,000 score), you will get Nightmare Secret Achievement
*You gain extra arena EXP if you make it to the end!
**If Bonus < 5, gain (5000 * Bonus) arena Exp
**If Bonus > 4, gain \left(\sqrt{raidDamage * Bonus}\cdot 1.337\right)\cdot 200+20000 arena Exp
**Maximum extra exp is amount you currently need for Rank up or 20,000,000
*If you complete the raid with a +1 or more, you will get a Revolution Pyrabow OR Revolution Earrings!
**Both have equal 50% chance
**Revolution Pyrabow has these stats:
***Rank requirement = floor(arenaRank / 10)* 10 - 4; minimum is 6 and maximum (26 + Bonus * 20)
***(70 + 40*Bonus) Attack, (6 + Bonus) Speed, (60 + 10*Bonus) Defense, (30 + 5*Bonus)% Critical Chance, (30 + 5*Bonus)% Accuracy
***Max level is (6 + 20*Bonus)
***Pre-enhancement is equal to Bonus (with maximum of 5), so player can use at least 5 enhancers on it
***Green bonus is Spawn rate, orange bonus is Ignore defense, purple bonus is random
***Unobtainium enhancement is equal to Bonus
***Revolution Pyrabow is not Spirit item, cannot have colored bonuses changed, cannot be fused and has no time limit
**Revolution Earrings have these stats:
***Rank requirement = floor(arenaRank / 10)* 10 - 4; minimum is 6 and maximum (26 + Bonus * 20)
***(10*Bonus) Attack, (5* Bonus)% Attack Speed, (10*Bonus) Defense, (5*Bonus)% Critical Damage, (5*Bonus)% Evasion, (5*Bonus)% HP
***Pre-enhancement is equal to Bonus
***Green bonus is random, orange bonus is random, Earrings don't have purple bonus
***Unobtainium enhancement is equal to Bonus
***Revolution Earrings are not a Spirit item, cannot have colored bonuses changed, have no time limit and Unique Enhancers cannot be used on them.
*If Bonus was higher than 1, you get 2 * Bonus2 Superior Crafting Material
*If Bonus was higher than 1 and Worst Moon mode is active, you get 2 * Bonus2 Unobtainium
*You have 0.1 * Bonus2 % chance to get Mystery Enhancer Identifier
*You have 0.1 * Bonus2 % chance to get Accessory Unique Enhancer Lv. 1
*You have Bonus2 % chance to get Strength Enhancement Skill Book
*You have Bonus2 % chance to get Dexterity Enhancement Skill Book
*You get 9 Ring drops (14 if in Hardcore mode)
*You get 10 * (1 + Bonus2) Enhancer Fragments
*You get amount of Crystals of Rarity equal to Bonus (maximum 10)
*You get 1-4 Crystals of Ultimate Rarity when you have Bonus at least 5,7,9 and 11
*You get 20 * (1 + Bonus2) Blue Coins
*You get 10,000 * (1 + Bonus2) Green Coins