Some questions about new monsters in PAL (Patreon)

I'm planning to add a few new monsters (as well as the Nega Maids themselves) as possible enemies. What do you think these guys might have in store? I've implemented a lot of systems now like damage resistance, poison, burning, entanglement, unbalancing, stunning, winding etc. as well as a lot of special attacks. Mimics can potentially give gil payouts, statue petrification never wears off, and there are a bunch more. I'd like to keep other monsters interesting too, so I'd appreciate any suggestions on simple ways that use the systems I've implemented to make these guys a little different.

a) Skyjelly - flies through the air like the skyshark and skymanta.

b) Not sure, let's call it "beaky" for now.

c) Again, not sure. Let's call it "ugly" for now, until I've got a better name.

Okay, that's the three of them. Any suggestions? Remember, most of all it's unusual abilities that I'm looking for - attacks, resistances, surprises, etc.