A shimmering dome of blue energy appears, enveloping the makeshift grenade and whipping it into the no man's land in the middle of the hall. It detonates inside the construct with a dull thud - the bubble cracks, but doesn't break.

Glad to know he can actually stop something with it, because between intangible sociopaths and would-be gods that's been hit or miss.

Garrus pokes out from cover, a blue marble forming in the palm of his hand. It zips down the hallway - a low velocity, less-than-lethal projectile - towards the criminal who had lobbed the grenade.

"I've got your back. Take 'em!"