Have you looked at Emrakul's Hatcher? It's not quite free to play from hand like the priests are, but it gives the Mana to you in the form of creatures that you can sacrifice for something better (like the altar), and has a slightly tougher body if you need it.
FearDReaper: There were quite a few creatures I forgot to include in that list. I'm currently getting my cards professionally sorted, so I'm going to have to rebuild my deck, but I have an early deck list up here. I'm going to have to cut some non-basic land for more swamps, but it's close.
FearDReaper: There were quite a few creatures I forgot to include in that list. I'm currently getting my cards professionally sorted, so I'm going to have to rebuild my deck, but I have an early deck list up here. I'm going to have to cut some non-basic land for more swamps, but it's close.