Conduit of Worlds = Infinite Turns, Zero Spells If this isnt convoluted enough for you, theres another Conduit of Worlds + Second Chance on Commander Spellbook This might be the worst two-card infinite turn combo
Or your deck could make interesting use of the exile mechanic to remove and return creatures to play for bonuses such as creating flying creature tokens like the Phantom Premonition deck does
And you can do each or all of them as you need
Its no surprise that the recent Prismari Performance preconstructed deck was a Spellslinger one: every aspect of the archetype has an artistic and expressive feel to it, so it fits the bill perfectly
It also suffers from an unreliable primary card-draw engine that requires having Huey, Dewey, and Louie in play
It can be devastating depending on the target you choose, be it Phyrexian Obliterator or Screaming Nemesis