Is Loki like the Christian Satan?
No. Loki has more in common with the Native American Trickster God, Coyote than with the Christian concept of the devil. Loki is mischievous and sometimes malevolent but there are also lessons and gifts that come from each of his pranks. The amazing weapons and magical items the gods have come from Lokis tricks. It is true that one of Lokis pranks cost the beloved God Baldur his life and Loki prevented Baldur from being restored. In punishment he was chained tightly with a poisonous snake hanging overhead, dripping stinging poisonous venom on Lokis face. The epic battle of Ragnarok will happen when Loki breaks free and leads the giants and the dead against the Gods but even this will have results that will eventually be seen as beneficial. Most of the Gods and the Earth are destroyed but some of mankind and Gods survive. Baldur is restored and leads the young gods and goddesses in reforming the Earth and restoring mankind to a renewed land.