Some thoughts on champion/druid:
Field of Replenishment: Greatly reduce mana costs. If you want to use the skill not only because of the buff, but also as a healing skill, you get mana problems very quickly. Is the crit rate based on physical or magical crit value? If it is based on magic, please change it to physical. Had the feeling to criten with the healing very little, but maybe my feeling is wrong 
Electroction: Should also reduce the magical defense of the target
Rune Recovery: Should also increase the casting speed. This would be advantageous if you also want to cast a "Recover". In addition, remove the mana cost when a "Rune Pulse" triggers "Recover".
Recover: Is the crit rate based on physical or magical crit value? If it is based on magic, please change it to physical. Had the feeling to criten with the healing very little, but maybe my feeling is wrong 
Kind regards