You get a repeatable loot engine, and you get devotion to blue, and a way to trigger casting non-creature spells
If youre trying to do something engine-y like Jeskai Ascendancy, your opponent is going to have answers due to Force of Vigor
Were taking the same approach where well find the odds of not getting what we want, and just subtract that from 1
Assuming you have enough Islands in play to let Mystic Sanctuary enter untapped, youll be able to take infinite turns by executing the following steps: Cast your extra turn spell Play Mystic Sanctuary, putting the extra turn spell on top of your deck Tap Mystic Sanctuary for mana, then bounce it back to your hand with Trade Routes Take an extra turn, redrawing the extra turn spell, then repeat these steps over and over If infinite turns arent your jam, there are numerous ways to generate infinite Landfall triggers instead
Even in modern sets, the Kanto Fire-type almost always becomes the center of attention of collectors when featured in a new expansion