Are you confused over the ending to DOTA: Dragon’s Blood and need the conclusion explained to you?
Dota 2 is a tall drink of water from a lore perspective. Every game is canon, different skins represent different characters, and everyone is fighting over chunks of the moon that are actually living things. The animated series maintains all that, then adds a bunch more on top of it. Couple all that dense lore with the show’s incredibly brisk pacing and storylines that just aren’t actually seen through at all, and it’s basically impossible to keep track of things with only one watch-through.
That’s especially the case with the final scenes of the show. Despite apparently being left in a dying universe with a terminal illness, DOTA: Dragon’s Blood closes with Filomena having her plague cured, seemingly in the main universe of the series. Here’s what that means and how this happens.
Filomena survives the ending of DOTA: Dragon’s Blood because an alternate reality version of herself is moved into the universe where she can be cured.
DOTA: Dragon’s Blood ends with Invoker trapped in Foulfell, Terrorblade’s home realm which is described as the “hell of hells.” Despite being drained of his power by the battle with Terrorblade and getting dressed down by the heroes, he’s shown smiling as they leave. This smile is because his grand plan had ultimately worked, just not in the way he expected.
Invoker’s plan was to use the eight Eldwurm’s souls to recreate the universe using the Forge of Creation, which is part of Elder Titan’s lore. He succeeds in this goal and creates a universe where the Mad Moon stays intact. In episode seven of season three, Invoker starts showing Filomena how to use the forge. She struggles with the notion of erasing everything she knows out of existence, but that likely changes when the Mad Moon breaks and destroys the world.
Though Mirana undoes this universe, a common theme in any fiction with multiverses is that they don’t just suddenly stop. It’s likely that even after Mirana moves things back, the new Filomena’s life goes on and she can master how to use the forge in a way that lets her insert herself into other universes.
As for how she’s cured, that’s fairly vague. The ominous “do you love me?” implies that she may have awakened to godhood, and the flowers seemed much more powerful when Selemene was exposed to them in season two. That said, it certainly seems like elements of the ending were made up on the fly. It’s really anyone’s guess as to how or if the story continues.