Improving the look atop a pie. Or outside the window of a maiden to climb. My woven arms support all charms. In diamonds my carbon can be formed in a... What am I?

I can strike at any time, there is no reason or rhyme. A shock to the system, but you'll be fine, your brain will thank you, in due time. If my purpose remains unclear, I'm what writer's block doth fear.

You might not notice me until I'm on the edge of death Require energy to live, but no, I don't draw breath I have two sides, that push and pull, in ways that go unseen, And I might just be the reason why there's something on your screen

I am a dark shape against the light, with no fine features shown in sight. Not the shadow cast at your feet, just your outline, dark and neat.

She stands where fear would reign, a girl with fire in her name. Like Joan, she hears the call, like Malala, she stands tall. Like Greta, she will not bend, for tomorrow, she will defend. Not queen by crown or throne, but brave in flesh and bone.