So that wasn’t the Emerald Dream I went into to get some Acorns during Wrath?
That wasn’t the Emerald Dream I used to move Fandral Staghelm from his prison to avoid the Twilights Hammer?
That wasn’t the Emerald Dream I saved from Xavius and the Nightmare?
https://warcraft.wiki.gg/wiki/Hope_Within_the_Emerald_Nightmare
for the acorn quest.
What we need exists only in the emerald dream… acorns that are infused with a powerful restorative magic. Many places in this sacred glade are closely tied with the dream, and my shrine is among them.
I will send you into the dream to recover one of these acorns.
https://warcraft.wiki.gg/wiki/Through_the_Dream
for the Fandral prison move
Fandral Staghelm is bound by powerful spells. He won’t be able to escape you, even inside the Emerald Dream.
Beware, though, for all we know the nightmare has spread to this part of the world inside the dream.
Obviously the Xavius reference is the Emerald Nightmare raid from Legion.
Then there are druids who had a fast travel system in the Emerald Dream (this is also where you fight Ysondre and her Nightmares in the Emerald Nightmare raid)
In BFA we enter the Emerald Dream to help fend of a void invasion (crucible of flame questline). This is also where we destroy the void flower that Ysera’s ghost? tried to lead us to at the end of the Emerald Nightmare raid.
Worgen players journey with Tess into the Emerald Dream by Goldrinn in the Worgen heritage armor questline.
There is also the max level campaign from Dragonflight launch where the Primalists invade the Emerald Dream. This is the one where we bring Ysera back from Ardenweald, for a limited time anyway.
Point is, saying that 10.2 is the first time we have ever entered the Emerald Dream is flat out false.
You know mentioning the max level campaign from Dragonflight Launch that involved the dream, Warcraft wiki incorrectly says that ysera was brought back to help us combat Koroleth. Koroleth dies in the leveling campaign, not the max level campaign. Ysera was brought back to help us defeat Rymek.
The error in question
With the help of their centaur, adventurer allies, and former Aspect Ysera, the greens defeated the Primalist leader Koroleth and scattered her forces, making the portal safe once more
https://warcraft.wiki.gg/wiki/Emerald_Dream#Dragonflight
In fact this page makes no reference to Rymek and his attempt at getting Amirdrassil’s seed. It just skips straight from the Ohn’ahra plains leveling campaign to the 10.2 campaign.