Prepare to be "sleeched" by the sleeches that are more powerful! Red and black sleech is spammed while angel sleech is also spawned. 3 Angelic sleipnirs also spawn, making this level more annoying.
Weirdly, this stage is veteran. Don't be fooled by this.
To beat it, you will need to save up money first by stalling the Sluggy(Angel). When you have Bahamut and other strong hitters, prepare for the sleipnir party. Dragon cat can be a huge help here, however don't spawn Paris, as she wont be able to get a single hit off. Try to meatshield your best ability. Having long ranged cats can help too.