The rune word 'nidhog', wich summons the dragon to help the reader in battle.
In lore, Nidhog never actually fought any battle. He lives still near the world tree Yggdrasill, in the cold realm of Niflheim, the source of the icy river Hvergelmir. He gnaws the roots of Yggdrasill, hurting and damaging it. His only known enemy is the eagle wich lives in the top of the tree. The quarrel between them is mediated by a squirrel called Ratatoskr, wich runs up and down the world tree to deliver the answers.
Nidhog is part of the norse Underworld, sucking the blood out of the corpses and so taking them their vitality. He carries on with his duty even after Ragnarok, in wich he have not chosen any side, collecting the corpses of gods and giants from the battlefield and then sinking into the depths again.
He has no counterpart in Christian mythology and can not be compared to the evil dragons wich are described there.

It took me about 6 hours to make that icon, because i drew and dodged about 500 scales on the dragon, but of course its not visible on these f§%?*$&g 64x64 pixels. Some feedback please.

Keywords:
Nidhog, Norse, Dragon, Snake, Scroll, Rune, Viking