Detailed Sphinx

"That game came down to the wire!" Jason said. "I love those games."

"Me, too, but...god I wish this deck wasn't so boring."

"Well, what're you trying to do?" he asked.

"Play stuff off the top of my deck, use Ninjas and Yennett to play things for free."

"How does Yennet work?"

And this was the question that led to me looking up Yennet in Gatherer to see what the rulings are and we found this tidbit:

If you cast a card “without paying its mana cost,” you can’t choose to cast it for any alternative costs, such as evoke costs. You can, however, pay additional costs. If the card has any mandatory additional costs, such as that of Tormenting Voice, those must be paid to cast it.

That's good to know, since additional costs would include Kicker, Entwine, and Buyback, for example.

Suddenly, there's something I can work with.

With that in mind, I'm removing: Devastation Tide, Banishing Stroke, Predict, Lightform, Cloudform, Sigiled Starfish, High Priest of Penance, Varna, Lich Queen, and Primordial Mist.

Adding: Evangelize, Dismantling Blow, Stormscape Battlemage, Stormscape Familiar, Mystic Speculation, Temporal Cascade, Demonic Collusion, Future Sight, Conqueror's Pledge, and Urborg Emissary.

Then I cut two Plains for a Swiftfoot Boots and a Stir the Pride. 40 lands is a lot and the analysis was that I had a lot more white than I needed. Swiftfoot Boots protects Yennet which is critical, and Stir the Pride could be a great turnaround moment in the game.

So this should be fun to test!