When the unknown is made known, when the lost weapon is found, when the marrow-fire is quenched and Godslayer is freed, when a daughter of Elterrion weds a son of Altorus, when the Spear of Light is brought forth and the Helm of Shadows is broken, the Fjeltroll shall fall, the Were shall be defeated ere they rise, and the Sunderer shall be no more, the Souma shall be restored and the Sundered World made whole and Haomane's Children shall endure.
Actual Pacifist: Contrary to their usual stereotype, the Dwarves. They eventually try their hand at war and are victorious in a skirmish, but are so horrified that they leave the battlefield and tend to the wounded for the rest of the battle.
Cold Sniper: Fianna is an archer, but otherwise plays the trope straight.
Consummate Liar: According to Haomane's Allies (the "heroes"), Satoris is this. According to Satoris, Haomane himself is this. The "heroes" also call dragons this, while the "villains" think that the dragons are the only ones who really know what is going on.
Cool Sword: In-universe example with the male madlings being infatuated with Tanaros' sword.
Doomed Moral Victor: Satoris, sort of. After treating Cerelinde well as his "guest", he eventually lets her kill him (for the sake of the prophecy) without provocation, thus robbing her and her side of their claim to a moral high ground. Only after this does she consider the possibility that Satoris might be telling the truth, but by then it's too late.
Hobbits: In contrast to many other elements in this series, the Yarru-yami are strikingly different from Hobbits. Sure they're short and go barefoot, but they are dark-skinned and live in the middle of a desert rather than the idyllic Shire.
Immortal Procreation Clause: Justified for the Ellylon, since they have no sex drive. This trope could have been averted had Haomane, creator of the Ellylon, accepted the Gift of Satoris for his children.
Laser-Guided Karma: Satoris' one truly evil act (although not unprovoked) indirectly leads to his death.
Moral Dissonance: "We can either hunt you all down and exterminate you to the last one, or we can leave you in peace - as long as you never have any more babies." This is the choice forced by the "hero" onto a race who have dealt with the Big Bad in the past (under a different leader) and have now washed their hands of any more involvement.
Poor Communication Kills: Brutally justified, because the "heroes" think the "villains" are consummate liars, and don't realize that if they just ignored the prophecy that the "villains" would just leave them alone.
Power Trio: Tanaros, Vorax, and Ushahin. Malthus, Dergail, and Ardreth used to be this before the last two died.
Prophecies Are Always Right: Subverted. While all the conditions for the end result of the prophecy are fulfilled, Ushahin stealing Godslayer prevents the actual end result from taking place, meaning that the prophecy's end result was averted for a reason that had absolutely nothing to do with the necessary conditions the prophecy mentioned, and that all attempts to fulfill or avert those conditions were pointless.
Pyrrhic Victory: The "good guys" win and Cerelinde is rescued, but the last part of the prophecy is unfulfilled, so the Rivenlost are still stranded and the other races are still separated from their gods.
Self-Fulfilling Prophecy: Satoris' attempts to avert Haomane's prophecy (when he does attempt to avert it at all) only serve to further its fulfillment.
Shaggy Dog Story: Even after all the effort Haomane's Allies put into fulfilling the prophecy they still don't get what they want, meaning that they basically killed Satoris for nothing.
Why Don't You Just Kill Her?: Both Ushahin and Vorax say this to Satoris, and eventually try to do it themselves. According to Satoris, it would not matter anyways since supposedly she is not the only female descendant of Elterrion and therefore killing her would only delay the prophecy, not prevent it.