I am so looking forward to getting my level 38 life spell. Dryad looks really cool and it will probably (totally) replace fairy in my deck! My question is to all you other life wizards is.... As I know it gives you 200 hp per pip I am wondering if it gives you 400 hp per power pip?
Yes, you get 200 per pip, and since you're a Life wizard, power pips count as two regular pips.
Remember that Dryad will use ALL of your available pips, so you might want to still stock other healing spells for times you don't need as many pips to fully heal you.