It’s complex enough for strategy but not too complex that it’ll leave your brain fried trying to learn how to play.
There’s over 200 unique cards, so each game plays differently.
Nasty Ones involves playing cards (creatures, items or spells) with players attempting to reduce other players health to 0 (usually by attacking with their creatures). One of the key gameplay features is that whenever you lose Health Points you gain Nasty Points, which are used to play cards, allowing you to take revenge and potentially gain the upper hand after you have been hit with a heavy attack. Every card has a unique ability and games usually last less than an hour.