As though seeing Leo be unable to make the grab isn't already launching his heart into his throat, hearing that word directed at him and then seeing what's being thrown at him is nearly enough to make him panic again. Donnie doesn't have the luxury of freaking out however, perhaps for the better.

He flings his hand out, the hilt glancing off the side of his palm. Forgetting everything else for a moment, he swings his other hand out to try where the first had failed, an almost comical display of sword juggling before he somehow finds the katana grasped in both hands.

He's also bent awkwardly over his mystic-tech, his victory short-lived as he has to haul his head up above the current that still goes against him. But he's still hanging on to that sword!