I always liked that the text of this card implies that the target creature’s controller can decline to play a land if they don’t feel like it. They can just be like, nah, fuck that guy. Get him out of here, I don’t want anything for him. (I’m sure that’s also an escape hatch if the player happens to have no lands left in their library.)
Other edge case synergies I can think of are, there’s nothing preventing you from exiling your own creature to play a land. This might work if you have a lot of cheap creatures lying around you don’t particularly like, or better still a zero casting cost one like an Ornithopter or similar. Also, it doesn’t say that it doesn’t work on creature tokens. So if you have a Goblin Warrens or some other kind of monster closet around you can pull out extra lands for “free.” I can’t picture this being a particularly effective strategy, but there you go.
I’m sure there are also edge cases where you’d prefer to avoid a deck shuffle so it’s cool that it’s optional. Maybe you’ve scryed something spicy on top deck.
So you’re saying its mono-white ramp?
Finally, WOTC has heard our pleas
It was common in jeskai control to path your own snapcaster in a control mirror