Hearthpwn

The 9 mana infinite spell combo that will fill your hand with random priest spells:
- Lyra the Sunshard (5 mana), 2x Radiant Elemental (4x mana), 1x Shadow Visions (0 mana), into infinite Shadow Visions (0 mana)
- The fun is that every spell of 2 mana or less you get from Lyra you can just cast! So you may be spamming heals and silences, potions of madness and pintsized potions, spirits, mind blasts, embrace the shadows, etcetera. Is the card >2 mana, just do another Shadow Visions until you get a card of <=2 mana. Just continue until your hand is full with spells that cost more than 2 mana.
- Combo condition: the trick is that the other Shadow Visions MUST be in your deck so you can discover it and keep playing Shadow Visions for 0 mana.

And besides this hand filling combo you just have your whole death rattle and quest thing going on.

I made a list of all the priest spells:
- 55% chance to get as 2 mana or lower card
- The 2 mana or lower cards have an average rating of 3.6 (taking the 5 star rating of http://www.hearthstonetopdecks.com/)

Cool optional cards:

- Burgly Bully
- Yogg-Saron, Hope's End
- Arcane Giant