I'm back close to 1200 MMR now, but I've made changes to the team. Today I publish another post to explain the changes I am making to improve.
Poison teams are good, especially if you have both backdoors (to the last and to the next one). They are very uncomfortable to play against.
I have both sneaky raid and smart shot. Both of them also have heal so I just have to sustain until blood moon curse so that I can have a better winning chance. It works most of the time except when I'm facing against double aqua with anemone. I coul NEVER win against them, not even once.