In the Hades Gate, there are three phases:
The sibelon phase
The lordakium phase
The Bk phase.
The reward is:
8 Logfiles
4 green booty keys
4,000,000 Experience
20,000 Uridium
220000 Honor Points
Waves :
Phase 1:
x50 sibelons
x20 boss sib
x10 uber sibs
x1 Emperor Sibelon (does approximately 35k damage)
Phase 2:
x50 lordakiums
x20 Boss lordakiums
x10 uber lordakiums
x1 Emperor Lordakium (might do about 40-80k damage)
Phase 3:
x50 BK
x20 Boss BKs
x10 Uber BKs
1 Emperor BK