The boy known as Jörmungandr among his comrades jumped along the main wing of a Russian tactical bomber. He should have been blown away by the subsonic wind of the plane’s speed and even standing unprotected at 10,000 meters was not normal, but he landed a short distance away as easily as a child playing in a park.
[…]
“In modern magical combat, it is easy enough for magicians to fly, but causing them to fall is just as easy. That’s why the standard theory is to not rise above ten meters,” said Jörmungandr while ignoring the fact he had flown up there.
[…]
Immediately afterwards, something purple and carrying lethality shot straight down toward the ocean like ultra high pressure water being used to cut sheets of steel.

Toaru Majutsu no Index New Testament vol.8 ch.3 pt.7