I'm going to be egotistic and post my proposed name for Manyula: Malice. Mal is prefix meaning, "bad," which means Manyula's name would essentially mean Bad Ice, meaning Evil Ice, meaning Dark Ice, which is what it is, really ;D. Plus, the word malice means bad anyway, even if it would be pronounced MAL-ice instead of MAL-iss.
No idea for Manene. I'll just say Biggrednoze as a dub name and STFU
~*CB*~
The 8th Champion