This is a relatively cheat healing deck that uses combos to ramp up quickly. The key is to always drop Katra before you heal or drop a power sigil with Sanctuary Priest out. If you are facing 1/1 mobs, with the exception of Warcry mobs (use your best judgement), you can save your Disrupt for the big boys and relics. Same goes for Deathstrike, it's used to take out the legendary mobs and high health mobs that might pose a risk, not the 1/1 and 3/3 that might ding you.
Once the deck gets moving you gain health, radiants, and ramp up quickly and tend to take over fast. Only use Katra and Bloodcaller Invoker to attack if you have no other option. These are your bread and butter, protect them as much as possible. You can sacrifice Vara if it's going to take out another mob, because it will generate a mob with the same attack as she has, Same goes for Dreamsnatcher. People aren't generally building decks to counter this one, so it's easy to climb the ladder with, but will probably not get you past the copy and paste meta. I hope you enjoy it and if you have any suggestions for improvement, I'm all ears.