Heres what made the final cut
Mirko, Obsessive Theorist Mirko also lets you cheat on the cost of spells, but instead of instants, its creatures, and instead of blindly milling yourself, you get to surveil cards into your graveyard
Again, we want to be copying some of these bigger spells, and it always helps to have something on the board that can essentially do this effect for free in the case your mana is tight
Another thing the Swamp King appreciates is a player casting black spells, which means well want a high volume of black spells in the deck
One of the coolest interactions you can do is with Chalice of the Void (where X is different from 1), casting Veil and making your spells uncounterable, blanking the Chalice
And the sails