SpoilerI believe it would be your ranged modifier since it is technically a ranged attack, though it is also a burst so it would hit somewhat but most likely not nearly as severe as you intended it to be
toughness roll
Spoiler1d20+8 (9) Unless something like that happens
The nin (who apparently appalls FMA) falls in a charred heap
Seiryu and his escort have made quite a bit of headway already and would seem to be reaching their destination. a nearby parked vehicle.
Bob
Spoileryou manage to insert yourself near Seiryu and his rather large escort (not in number in actual girth.)