You take another step forward, still meeting this godling's scream with your own, staring directing into its blinding white gaze. Your body is tensed, knees crouched, elbows bent and fists clenched. Your body strains with newfound energy, still growing in power and size. You're inches from its face now, only the glass and the air between you and this elk god creature, your fists pulled back and ready to swing. It's given up trying to control your body, pouring all its might into its mental attack, trying to crush you, punish you for daring to stand up to a god.
Which leaves it completely open to what you do next.
Lunging with all your weight, you send your fist flying foward, smashing through the window and directly at the godling's face. Time slows to a crawl as you do. As your fist meets the window pane, the glass bows and shakes, before shattering into a shining snowfall of shards and dust, the fragments bouncing off your skin in slow motion. The elk creature's roar dies in its throat as it slowly realizes what's happening, far too late to avoid it. With a deafening crunch, your fist hits home, smashing into the godling's deerlike muzzle, its jaw twisting with the impact, spit spraying out in an arc as its head tilts sideways. The glow of its eyes retreats back from your room, barely covering its shocked gaze in that slow, wonderful moment. The elk creature goes flying backwards, pulling off hunks of the now empty window frame as he falls flat on his back, hooved legs up in the air and covered with glass shards as he tries to scramble to his feet. You don't give it the chance to get up.
Stomping forward on your now very thick and heavy legs, you grab the godling by the throat in a thick, grey-skinned fist, pulling him off the ground and staring him straight in the face. He sputters and protests, still defiant.
"What on Earth are you doing? You should be groveling at my feet, begging for mercy! I am a ruler, a fae, a forest god! You dare try to steal my power? You don't even understand how to control it, how to keep your form! It's already changing you, and when I'm free-"
You tighten your grip on his throat just enough to make him wheeze and gasp, only loosening it when he stops trying to yell at you and focuses on getting air back in his lungs. But come to think of it, he has a point. You're pretty sure you weren't ten feet tall when you went to bed. Your skin wasn't thick and grey either. You stare at your fingers, finally noticing they've become massive, powerful things capped with thick white nails the size of a deer's hoof, your hand almost as big as the godling's head. You could swear you've seen something like this before. You look down at your legs, enormous grey columns the size of tree trunks, and see your feet being swallowed up, almost fusing with your ankles, the toes shrinking down until those huge nails are flush with the surface of your foot. With a sinking feeling in the pit of your stomach, you realize what's happening. You're becoming some sort of elephant creature.