Hearthpwn

Been playing this from rank 25 to 5 with a lot of success. 

Good use of Rebuke is crucial in this deck, sometimes you have to save it before being able to play Lynessa.

If you're playing against a lot of aggro, Blessed Champion is pretty much useless (same goes for Lay on Hands tbh, sometimes it might save you though - if you have taunts on the battlefield but very little hp against something like a face hunter). Something like 2xChillbade Champion might be a better idea.

Sound the Bells is really strong on Primalfin Champion (you can get pretty much endless copies of it, be careful not to mill yourself tho) and consequently shines even more when you get your Lynessa out.