Gasa became the Summoner of Anduinath, after performing a similar ritual like the one done by Geld, where she played the role of Anduinath executing Livinyas. While thoroughly confused by this turn of events, they will work together to stop any major enemies to dragons and the Great Wyrm.
Young Red Dragon, Anduinath serves as Livinyas' rival in some shape or fashion, proudly boasting himself as 'Livinyas' Executioner'. In some shape or form he seeks to be the antagonist to Livinyas' plans at immortality - and that includes preventing Geld from communing with her as a Summoner. Anduinath was the big boss trying to stop the Dragonslayer blade from piercing the Great Wyrm's skull.