Thank you for the link. Yes, maybe it's better to just buy the coins, but my GPU has been idle for a while now and was looking for a coin to mine. Mogwais seems like a good candidate as the nethash is not ridiculously high while at the same time the project itself looks interesting.
If you are interested, I think to mine mogwais in 3 days on onepool.fr
You're welcome.

Thanks for the suggestion, but at the moment I'm mining at
https://www.altcoinpool.club/ . It seems one of the few (or only?) pool with constant active miners present, which is all I wanted.