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In Commander, I think Oko might win in a landslide, since the high loyalty decreases the vulnerability to being attacked by multiple opponents, and the trade ability is more likely to find a high-value target

It's a format-defining card in Vintage

While it does appear on instants and sorceries, its much more commonly found on permanents, like creatures and enchantments

This is the other end of the spectrum to Silhana Wayfinder

You need to spend some time setting up Stitch Together, but you have plenty of discard outlets plus fetch lands and the like to get to threshold quickly

Eight lands in play is the break-even point where you can cast this for free, though you could always run it out earlier, hope it sticks around for a turn cycle, and untap with something like 10 to 12 mana from lands alone