plant
dark
Plant or Earth
water and dark
water and dark
water+ dark
Fire and dark.
you can't breed water dragon and dark dragon so easily,you need mix elements to get them,for example breed mud+dark/dark+mud= petroleum and pirate dragon
nenufar dragon (water+plant)and dark
its easy water+dark
you suck its dick until it ejaculates in all of the pillers
I suppose it is dark and water.... but I guess u have to keep breeding it. For example, maybe Neon Dragon(dark+lightning)and Lantern Dragon(water+lightning). I am not sure... but try it. Sorry :'(
To get the rattlesnake dragon on dragon city you breed the dark dragon with the plant dragon.i am not kidding.if you want even cooler dragons try breeding dark with water or metal with dark. Trust me they are so cool.