Fate Layer Cake

Question: Say that someone or something was able to get a Scion under their control and they had the Scion perform a Legendary feat in front of many mortals. Would the being(s) who gave the command be at risk of becoming Fatebound to the mortals, or will only the controlled Scion suffer it alone?

Fatebonds occur when someone spends Legend; their use of the innate divine power in their blood makes humanity sit up and take notice, which in turn affects Fate's weave when it comes to that particular Scion. If a Scion spends Legend to do something, the Fatebonds that follow always attach directly to her, regardless of who might be asking or coercing her to do it or why. If your Scion has been mentally flummoxed by someone else into blowing all her resources to heft a tractor over her head, mortals nearby are likely to become Fatebound to the idea that the Scion has Strength (or perhaps Control [Tractor] if they're feisty); Fate doesn't care why she's lifting a tractor, just that she clearly is and that her Legends are therefore going to be that much more about strength and tractors.

However, whatever person is controlling this Scion is just as susceptible to his own Fatebonds, regardless of what she's doing. Unless he manages to convince her to do what he wants with nothing but his silver tongue and persuasive smile, he might be spending Legend to do so, which means that he's at an equal risk of picking up new Fatebonds, even if the mortals around have no idea what he's up to. His Fatebonds won't have anything to do with tractor-lifting unless he's also out there juggling farm equipment, but rather with whatever he's doing at the time he spends the Legend - so it's more likely they'll be connected to his persuasive abilities, or to whatever he's doing or pretending to do while puppeteering his hapless Scion minion around the farm.

There are a lot of ways to try to get around this as a manipulator or behind-the-scenes politician, but the only surefire way to avoid being Fatebound is simply to not spend Legend anywhere near mortals, no matter what you're doing. It doesn't matter if someone else is being so impressive that no one even notices you're in the room; if you're spending Legend, Fate notices you're in the room.