Whispike Survivors - Sword of the Necromancer

This might seem like a long way to do this, but it's how I did it. On the farm screen, plant a Whispike in one of the corners and then plant three more around it. I'm not 100% sure if the abilities pass diagonally, but I put three around it anyway. Put one on the side and one above or below depending on the corner you use and then one diagonally. Keep the one in in the corner fed with manure and keep it alive and let the three around it die. There are two different deaths, I guess you can say. One is overripe and you can feed this type to make them normal again. Then there's full on rotten. You can't save them. For the sake of the achievement just let them all go to rotten and keep the corner one alive and well and after a few games one of the rotten ones will eventually transfer an ability to the one next to it. When it does the achievement will unlock. You don't have to use the corner, I just did to add that third one in case it did transfer diagonal.

See Attack on Whispike (90G) for my farming method to get the attributes you want.