For 22, just draw an X. Start from the top-right pointing line, at the bottom-left. Then, do the other, from the bottom to the top. Or probably some otehr way. Then just click on the edge to finish it up.
I will just note that you appear to be paying no attention ti the "more monsters requests, as I posted a request for more months ago but there are still no new monsters, and 2-3 players have also requested within this time.
Story of my life :P