Keylock what is behind the keyhole
My light burns strong- It is strong enough to keep the darkness out when fully powered
To defeat the darkness- if you leave them unpowered darkness will destroy but if you power them up darkness is drained massively.
Use me as protection from corruption- it protects frm the corruption of the world
I am cool and clean and have many forms- its a keyhole and has many forms from the sleeping doorknob to the one covered in vines and butterflys.
But I do the samething in all of them- yep it all portects from darkness