Dragon's Blood Season 1 Explained

While Dota 2's story may begin with the Primordial Mind's conflict with itself, the Dragon's Blood story begins one thousand years beforehand.

The details are murky, regarding what exactly went down, but it was at this time that a possibly mortal Selemene, on a mission to become the moon goddess, banished any elves that did not worship her from the Nightsilver Woods. That included her lover, Invoker, and their daughter, Filomena (Genevieve Beardslee), who both still worshipped her predecessor, the goddess Mene. Though Invoker and Filomena head off to have a life of their own, Filomena is stricken with a strange, unexplained ailment. It can only be fixed by returning to Selemene, but she demands that both of them worship her. Invoker kneels and gives in, but Filomena doesn't, so Selemene abandons her to die.

After Filomena's death, Invoker seeks vengeance. It's never said explicitly, but it's implied that he fabricates the stories-slash-prophecies that the followers of Selemene and the elves of Coedwig (the descendents of the banished elves) believe in the present. Selemene's followers believe that the Devil of the Moon, AKA Invoker, wants to bring about the apocalypse, while the elves believe that he needs to use the lotuses to bring back the goddess Mene. He tells Mirana that the stories aren't true, but the series hints that he planted them after Filomena's death to entice the two groups to wage war. After all, Selemene says of the stories, "Promises from fathers of failure become prophecy."

But a thousand year revenge plot? Really? Well, Invoker is known for having an unparalleled memory, so he hasn't forgotten a single moment with his daughter, thus keeping his thirst for vengeance alive for so long.