Referred to by the title "Edda of the Snow Fields", Loki appears to be the leader and most powerful member of Sleipnir. He carries a sword that exhibits abilities similar to the Rumble Regalia; using this weapon, he is able to absorb Ikki's Pile Tornado and then use its power to execute his own trick. Later, he is seen preparing to fight Ikki and Buccha in a 2-on-1 battle on the same airplane, a testament to his skill as the leader of Sleipnir. He deceives Ikki into downing Onigiri's plane. He later reveals he is a Brain Charger, and has been questioning the meaning of his existence. He easily knocks down Ikki and Buccha without Freya's help but soon Ikki reagains morale and begins to fight them evenly. After being deceived into being hit by Agito's fang, Loki transforms his sword into wings and is able to fly around in Freya's Dance of the Einjar's Sword to attack Ikki. His abilities are nullified by Ikki's null wind ability and his sword is shattered by one of Ikki's kicks. They then chicken race from one plane fragment to another, trying to reach the helicopter first. Loki calls for a pincher attack against Ikki with Freya but he finds her unconscious from Onigiri's trick, plummeting towards the water. He forfeits the match to save her and he along with the rest of Sleipner, realize they just want to fly in the sky. They then head off to a bar to celebrate, commenting that that would be their first experiece in one.
As a Wind King, Loki is a rider of the Wing Road. He has no trouble handling Ikki's Pile Tornado and countering with his own trick, showing his skill even without his Brain Charger. As a Brain Charger, Loki has access to their innate abilities as well. According to R.E.A.D., his battle level is 205. This was the highest Battle Level seen on a R.E.A.D. in the series,(Until recent chapters) and currently, the only known Battle Level estimated to be higher is Nike and Sora Takeuchi's level of 300+. However, Alexander claims to have a level of 262 and Lind has a level of 302. Ikki and Ringo have also shown to have higher R.E.A.D with levels of 350 and 320 respectively. Like Freya, his sword is also capabile of transforming into a set of AT Angel wings, which make it possible for him to fly.
- Sleipnir: Cyclone Destiny - Loki creates two tornadoes in front of his weapon and kicks his AT at the center, creating two vortexes of wind that blow his opponents away.
- Muspellzheimr's Shining Wind - Loki, with his sword transformed, utilizes a move similar to Freya's Dance of the Einjar's Sword, accelerating to incredibly high speeds to deliver extremely swift dive bombs from all sides.