Wyverns aren't really known for their bites, so that's not really likely, but the unability to land is famous. I hope Yveltal can land though.
Do they have to be known for, or could they just be capable?Wikipedia said:Depending on the cultural specifications, wyverns can breathe fire, or possess a venomous bite, or possess neither or both of these.
I've never heard of them being unable to land, though. Huh.