I'm used to aiming only one or two things at a time, so I find it kind of hard to wrap my head around having to focus a bunch of ice crystals onto one object...

[Mikuru steps forward to the target (Mitsuru will probably be able to see the twin pistols tucked into the tie of her apron) and puts out a hand, palm parallel to the target; it's her way of giving herself a physical extension to aim with. Her attempt at Blizzard forms a few patches of frost about half the size of a thumbnail on the target before fizzling out.]