Odinforce

The Odinforce is a powerful, mystical energy used by the Kings of Asgard, most notably Odin, hence its name. It is the source of power of the spear Gungnir wielded by the Kings of Asgard, and the Destroyer, and must be periodically replenished by entering the Odinsleep.

War Against the Dark Elves
Five thousand years ago, the then-king Bor led the armies of Asgard in their struggle against the Dark Elves into their Homeworld of Svartalfheim to secure the Aether, a weapon of infinite destruction. Upon arriving on the Dark World, Bor fired blasts of Odinforce from his spear Gungnir to cut down swaths of Dark Elves.

Thor's Banishment
During Thor's coronation, a squad of Frost Giants infiltrated Odin's Vault. Sensing their presence, Odin activated the Destroyer, which was stored within the Vault itself. The Destroyer armor powered up, summoning the Odinforce and disintegrating the intruders with energy blasts emitted from its head.

After Thor's disobedience and reckless actions on Jotunheim endangered the Nine Realms, Odin stripped Thor of his power and banished him to Midgard. Odin takes Thor's hammer Mjølnir and uses it to channel a burst of Odinforce that broke apart Thor's armor and pushed him into the Bifrost.

After Loki angrily yelled at his adoptive father for not informing him of his true nature, Odin collapsed in shock. Immediately after, Loki called upon some guards that carried him to the bed chamber where he is supposed to stay until his Odinsleep is over, during which Odin would rejuvenate and replenish the Odinforce.

Due to Odin's inability to perform his actions as King of Asgard while in the Odinsleep, Loki was appointed regent, and after numerous subversive acts against his rule by his subjects and Thor's friends, Loki sent the Destroyer down to Earth after Thor. The automaton laid waste to the small town of Puente Antiguo by incinerating everything in sight with its optic blasts. After suffering fatal wounds as a mortal, Thor regains his power and quickly destroys the Destroyer, easily deflecting its blasts with Mjølnir.

After returning to Asgard and learning of the true state of things, Thor tries to stop Loki's plan to destroy Jotunheim. During the subsequent duel, Loki wields Gungnir and fires several Odinforce blasts against his brother.

Loki's Campaign on Earth
After coming to conquer Earth, Loki was apprehended by Thor and his new allies at S.H.I.E.L.D.. During Loki's escape, he fatally wounded Agent Phil Coulson with a stab through the heart after deceiving both him and Thor. Before succumbing to death, Coulson fired a Destroyer Armor Prototype Gun that was developed as part of Phase 2 from the wreckage of the Destroyer appropriated by S.H.I.E.L.D. The blast of Odinforce was powerful enough to blow Loki several meters back and through a wall.

Return of the Dark Elves
The start of the Convergence and the unearthing of the Aether reactivated a dormant Dark Elf ship carrying the last survivors of their race. During the Dark Elves' attack on Asgard, Odin vanquished the last of the foes alive in the Throne Room after their initial descent.

Funeral Ritual
After the devastating attack and the death of Queen Frigga at the hands of Malekith, the deceased were put on funerary boats and floated to the edge of the Asgardian sea. Before falling off the end, Odin converted his fallen queen into energy using the Odinforce. While the vessel fell into the abyss, the Odinforce rose among the stars.

Attack on Cybertek
During the Battle at Cybertek, S.H.I.E.L.D. Director Nick Fury showed up to help Coulson and his team against John Garrett and his Centipede Soldiers, bringing with him the Destroyer Armor Prototype Gun. Coulson used its concussive blasts to great effect against the Centipede Soldiers.

Ragnarök Begins
After returning to Asgard from his travels in search of answers about the Infinity Stones and the Fall of Asgard, Thor went in search of his father Odin with his brother Loki, who had been masquerading as Odin and secretly ruling Asgard. Having found Odin overlooking a cliff in Norway, he told his sons it was his time to die and for Ragnarök to begin. Odin subsequently dissolved into Odinforce upon his death.

Non Canon Use
"Brave Sif, soon Thor will need you, and so too will all of Asgard. Today I deny fate..."

- Odin

After the death of Sif at the hands of a Frost Goliath, Loki visited Odin who informed him that he would use the Odinforce to revive Sif. Loki told him that Thor would defy him and wage war against the Jotuns until Ragnarök. Odin stated that his intention in reviving Sif was to prevent Thor from starting another war with the Frost Giants. Loki expressed belief that this plan would work and that Thor would defend Asgard in Odin's stead while he recovered in the Odinsleep. Odin used the Odinforce to revive Sif, but stated that she would not wake for several days. Drained of an immense amount of power, Odin entered the Odinsleep.

Users

 * Kings of Asgard
 * Buri (presumably)
 * Bor Burison
 * Odin Borson
 * Loki Laufeyson
 * Thor Odinson
 * S.H.I.E.L.D. Agents
 * Phil Coulson