Looks like you're wasting a lot of quanta/getting inconsistant quanta draws. As your main focus is to get out unstoppable scorpions, I recommend switching to a gravity/life duo for consistancy. Try switching to mark of gravity, replace novas/towers with life towers, deathstalkers for forest scorpions, and the shields for Spike Carapace. Maybe a SoG or SoD or Heal for healing