Question: Who is the fictional character published by Marvel Comics who originally designated Brunnhilde/Valkyrie to bring the souls of slain heros to Valhalla?

Context paragraphs:
Odin (comics): Odin is a fictional character appearing in American comic books published by Marvel Comics.  The character is first mentioned in "Journey into Mystery" #85 (Oct. 1962), then first appears in "Journey into Mystery" #86 (Nov. 1962), and was adapted from the Odin of Norse mythology by Stan Lee and Jack Kirby.  He is the father of Thor and former king of Asgard.

Homer the Happy Ghost: Homer the Happy Ghost is a fictional supernatural-humor character published by Atlas Comics, the 1950s predecessor of Marvel Comics.  The title character first appeared in "Homer, The Happy Ghost" #1 (March 1955); although strongly resembling Casper, he possesses freckles, a Tintin-style cowlick and a halo.  All of Homer's stories were written by Stan Lee and drawn by Dan DeCarlo.  The title lasted until 1958.  In addition, Atlas published two issues of "Adventures of Homer Ghost" (June & Aug. 1957.)

The Punisher War Zone: The Punisher War Zone or Punisher War Zone is a comic book spin-off title featuring the Punisher, a fictional character published by Marvel Comics.

Black Widow (Claire Voyant): Black Widow (Claire Voyant) is a fictional character appearing in American comic books published by Marvel Comics.  An antiheroine who kills evildoers in order to deliver their souls to Satan, her master, she first appears in "Mystic Comics" #4 (cover dated Aug. 1940), published by Marvel predecessor Timely Comics.  Created by writer George Kapitan and artist Harry Sahle, she is unrelated to Marvel's later superspy character called Black Widow.

All-American (comics): All-American (Jack Magniconte), who has also been called Mr. Magnificent is a fictional character published in the New Universe imprint of Marvel Comics.  He was the central figure of "Kickers, Inc.", and when that title was discontinued he became a supporting character in other New Universe titles.  When the New Universe was brought into the mainstream Marvel Universe, he was one of the characters featured.

Cipher (newuniversal): Cipher (Jennifer Swann) is a fictional character appearing in American comic books published by Marvel Comics.  The character appears in the newuniversal imprint of Marvel Comics, and is one of the four initial superhumans created by the White Event in 2006 (the others being Justice, Nightmask, and Star Brand).  "newuniversal", designated Earth-555 in the Marvel Comics multiverse, is a re-imagining of the New Universe imprint from the late 1980s.  The name Cipher actually refers to two things: a powerful extra-dimensional glyph (tattoo) that confers superhuman powers on a sentient being, and the name of the being that wields the glyph.  Cipher is a new superhuman created by Warren Ellis and Salvador Larroca who were inspired by the original Spitfire and the nature of the Star Brand itself (as an extra-dimensional tool of near-unlimited power), combined with strong conceptual ties to Iron Man.

Valkyrior: The Valkyrior is a fictional organization that appears in American comic books published by Marvel Comics.  Based on the Valkyries of Norse mythology, the group, created by Stan Lee and Jack Kirby, first appeared in "Thor" #133 (October 1966).  Within the context of Marvel's shared universe, the Valkyrior is a group of female warriors led by Brunnhilde / Valkyrie that was originally designated by Odin to bring the souls of slain heroes to Valhalla.  In 2013, the team became the subject of the short lived series, "The Fearless Defenders".

Starr the Slayer: Starr the Slayer is a fictional character published by Marvel Comics.  He first appeared in "Chamber of Darkness" #4, (April 1970), and was created by Roy Thomas and Barry Windsor-Smith.  In 2007, writer Warren Ellis introduced a new version of Starr in the Marvel series newuniversal.

Valkyrie (Marvel Comics): Valkyrie is a fictional superhero appearing in American comic books published by Marvel Comics.  The character was created by Roy Thomas and John Buscema, based on the Norse mythological figure Brynhildr.  The character first appeared in "The Avengers" #83 (December 1970) and has become a mainstay of the superhero team known as the Defenders.  An Asgardian by birth, Valkyrie, also known by her real name, Brunnhilde, was selected by Odin to lead the Valkyrior.  Among her other aliases are Barbara Denton-Norriss, Samantha Parrington, Sian Bowen, and Annabelle Riggs who were all host bodies to the spirit of Brunnhilde.  Samantha Parrington, a previous host of Brunnhilde, later received Valkyrie's powers and became a member of the Defenders herself.  An ally and one-time love interest of Thor, she was ranked 30th in IGN's list of "The Top 50 Avengers", and 65th in "Comics Buyer's Guide's" "100 Sexiest Women in Comics" list.

Captain America: Captain America is a fictional character appearing in American comic books published by Marvel Comics.  Created by cartoonists Joe Simon and Jack Kirby, the character first appeared in "Captain America Comics" #1 (cover dated March 1941) from Timely Comics, a predecessor of Marvel Comics.  Captain America was designed as a patriotic supersoldier who often fought the Axis powers of World War II and was Timely Comics' most popular character during the wartime period.  The popularity of superheroes waned following the war and the "Captain America" comic book was discontinued in 1950, with a short-lived revival in 1953.  Since Marvel Comics revived the character in 1964, Captain America has remained in publication.

Supporting paragraphs: Valkyrior Odin (comics)
Answer: Odin