- Dueling Works: Not exactly "duelling" since they're published by the same company, but it makes an interesting companion piece to I Hate Fairyland. They both deconstruct the "child lost in magical world" genre by showing the child grown to adulthood in the magical world, they're both violent and gory, and both feature highly morally ambiguous protagonists. However, while I Hate Fairyland is a Black Comedy set in a cartoonish Crapsaccharine World which the protagonist is trapped in and trying to escape, Birthright is a serious Urban Fantasy story set on Earth which the protagonist is trying to bring the magical world into.
- Inexplicably Identical Individuals: When Lore was the Chosen One, he looked exactly like Mikey. His true form is just a white haired Mikey wearing a crown.
- Moral Event Horizon: Kylen crosses it when he slaughters a whole SWAT team that tried and failed to capture Mike alive, pinning their murders on him just to make him look like a national threat.
- Nightmare Fuel:
- God-King Lore's design is extremely disturbing to look at. His face is seemingly flayed and his muscles are made out of maggots. Its made less terrible by the fact that is not his true form - he looks like a normal human, and that appearance in question is his Game Face.
- The Diviner is a cleansing spirit that twists all life around it with the sole purpose to destroy Lore's demons. The effects can range from individuals being possessed, corpses being reanimated to fight and they will not stop until their enemies are killed.
- Mastema using her magic to interrogate Mikey in Issue #23 has her twisting and stretching his body apart like rubber.
- Issue #24 has Kallista the Pale Rider finally being introduced into the narrative after only appearing in flashbacks in the most horrifying manner: after Mikey kills Kylen, the barriers are weakened enough for beings from Terrenos to cross over into Earth and she does so by possessing Kylen's recently deceased body and tears it apart to reveal her true self underneath it. And to make matters worse, her appearance is nothing short of an Humanoid Abomination worse than Mikey when the Nevermind takes control.
- Sliding Scale of Villain Effectiveness: God-King Lore ranks High. High enough that five of the most powerful mages in Terrenos came to the conclusion that keeping up the fight was so pointless that the only alternative was to escape to another world and lock the door behind them. High enough to not just defeat the Chosen One raised from childhood for the sole purpose of killing him, but break his will and turn him into Lore's own assassin.
- Tear Jerker: The ending of Issue #25 is a crushing Downer Ending since Mikey's family has turned away from him after learning of his true allegiance to Lore and refused him to go near his newborn daughter, his little brother is kidnapped by The Dragon, one of the mages has gone missing, he is now a wanted terrorist by US authorities for several murders pinned on him by Kylen and the barriers between Earth and Terrenos are so thin that who knows what else will come from the other side.
- What an Idiot!: Kylen immediately attacks Mastema after Michael told him that she is a traitor to Lore. He believes the words of an sworn enemy rather than his long standing ally rather than demand an explanation from her. The ensuing confusing ends up leading to Michael breaking free and killing Kylen, all because of the latter was too much of an hothead.
YMMV / Birthright