Heart Shaped Herb:Theheart shaped herb is what gives the king of Wakanda the strength of the Black Panther which grants superhuman powers to defend Wakanda (The heart shaped herb might have been used to make super soldier serum since it also granted cap and bucky superhuman powers)
Super soldier serum:This serum was created by Abraham Erskine to enhance the human body this serum was used on Captain America (Steve Rogers) and The Winter Soldier (James Bucky Barnes)
Vibarnium:Vibranium is the strongest metal on earth and it is only found and ONLY found in Wakanda this was mentioned in Avengers Age Of Ultron and in Black Panther some items made of Vibranium is Cap's shield Bucky's arm Vision T'challas nanotech suit klaue's arm Wakanda's weapons and they even sew it into their clothes
Mjolnir:This hammer was forged in the heart of a dying star "Nidavellir" this hammer can only be lifted by whoever is worth of it like Thor Captain America Odin and vision. After mjolnri was broken by hela in Thor:Ragnarok thor got his hands on the stormbreaker which has the powers of hemidall's sword and mjolnir
Vormir:Vormir is the home of the soul stone and this is where Red Skull was banished in Captain America The First Avenger by the tesseract for abusing the power of it and to ensure whoever posseses it understands it's power.
Heimdall: Hemidall is the watchman of gods and he is all seeing and all hearing and is the protector of the bifrost bridge in Asgard
H.Y.D.R.A: Hydra is a terrorist organization bent on world domination this organization was led by Red Skull a former Nazi agent. Hydra was secretly infiltrating S.H.I.E.L.D for years until Steve and Natasha find out by Arnim Zola who had is consciousness transfered onto a computer.
Hank Pym: Hank pym is the creator of the Ant-Man suit worn by Scott Lang and hank is also the creator of the Wasp suit worn by is daughter Hope Van Dyne...not much to say left about him
Korg:His name his korg he is made of rocks as you can see but dont let that intimidate you unless you are scissors he has a friend named Miek who has knives for hands. Korg had a rebellion that was organized by him and other gladiators like Hulk and Thor to overthrow the Grandmaster of Sakarr. Not much about him either just that he likes to play Fortnite with miek and thor (Apperntly endgame predicted the og update cause korg was in salty springs and it was 2023)
Heart Shaped herb:This herb is given to the king of Wakanda to gain the strength of the black panther this plant only grows in Wakanda it is said that this plant was a gift of the local panther god of Wakanda but in reality it was only mutated by a vibranium metorite that crashed into the earth
Valkyries: Valkyries are a group of female warriors from Asgard who served as Odins special forces. The Valkyries were sent to hel by Odin to make sure Hela did not escape but that turned into a a massacre leaving Brunnhilde the only Valkyrie left and she ran away to sakaar.