Summon Durnehviir

 is a Dragon Shout in. It summons the undead Dragon Durnehviir from the Soul Cairn. Durnehviir is technically a summoned creature, unlike Odahviing; therefore, the shout can only be completed while pointing at a suitable location for a summoning, such as the ground. The wait time between uses of this Shout is five minutes.

Note: There is some confusion surrounding this Shout. It is not like other Shouts, which have three levels of power, and can be used when only the first word is learned and unlocked. Durnehviir initially teaches the Dragonborn all three words of Summon Durnehviir, and all three words must be unlocked with dragon souls before the Shout can be used (by pointing at an open area of ground large enough to park a midsized dragon and Shouting); unlocking the first word, for example, results in the Dragonborn Shouting "Dur", but nothing else happens. The miscellaneous quest inventory indicating an open quest "Learn the first word of Durnehviir's Shout" is actually referring to Soul Tear, an entirely different Shout that Durnehviir will teach to the Dragonborn, one word at a time, during his first three summonings. Only after that will Durnehviir be of any real use in battle.

Trivia

 * Durnehviir can be summoned inside buildings because he is conjured from a realm of Oblivion, much like many other creatures from the Conjuration school of magic.

Bugs

 * Sometimes if this shout is used near a follower, they may become immediately hostile for no apparent reason.
 * Durnehviir sometimes disappears directly after summoning him. He will not finish his talk with you, but you will learn a part of his shout, Soul Tear.
 * Durnehviir can be found stuck in the ground near the stables of Whiterun, even if you haven't summoned him there. He tries to fly and makes normal dragon noises. Summoning Durnehviir somewhere else will fix this.