Archmage of Runes solves this nicely, allowing you to just play ritual style cards to generate increasing amounts of mana while having enough remaining cards to keep playing them
If you turn your gaze to Commander, you can set up a few infinite loops right out of the command zone
Not only do we have tons of fantastic main set cards, stellar bonus sheet reprints, and four precons, but were even getting Secret Lair drops
I, II, III, IV, V, VI Note a creature type that hasn't been noted for this Saga
Instead, focus on taking advantage of Etali's attack trigger by using cards like Combat Celebrant to go way over the top of your opponents
But do you want the potential ups of a Sundering Growth or the consistent, dominating, card advantage of a Ray of Revelation