Answer:
I have a lot to say but can't be heard because I can't speak one single word. What am I?
There's a one-story house in which everything is green. Green walls green windows green doors. What color are the stairs?
I hide in a dark tunnel awaiting my time. I can only be released by pulling back. Once released I may do unstoppable damage.
I cut through evil like a double edged sword and chaos flees at my approach. Balance I single-handedly upraise through battles fought with heart and mind instead of with my gaze.
I am commonly abbreviated to H
Though not a plant, has leaves. Though not a beast, has spine. Though many wouldn't need this thing, It's more valuable than wine.