* CompleteMonster: [[spoiler: ''Ausar'', pre-MemoryGambit. In the first game, there's a scene where Raidriar tells Archarin, after the latter joins him, that he's worried about the rising power of less principled Deathless--the whole reason he needs the Infinity Blade. That's ''nothing'' compared to the sheer hatred and disgust Raidriar has for Ausar, an utterly honorless being who apparently didn't get dubbed "Ausar the Terrible" by history, and "the vilest evil this world has ever known" by the Archivist, for nothing. That he ''killed his own wife'' may just be part of the above-water part of the iceberg...]] There's a ''reason'' his original trademark equipment is called the "Vile" set.
** [[spoiler:Ausar]] is ''heavily'' implied to be this in both the novel and the game's sequel, not only by everyone who speaks of him, but also [[spoiler:the dark thoughts]] that Siris is getting throughout the novel. However, it is also implied that [[spoiler:his MemoryGambit is his attempt at atoning for what he has done.]]
* GameBreaker: Heal magic can be this, particularly with the last magic ring as it gives you full health and can recharge several times in the course of one fight. Then again, consider the requirements to get it, it can also be considered as BraggingRightsReward.
** In II with the Vault of Tears expansion, the Holy Ring is definitely this. It does 10000 irresistible holy damage that can also heal you the same amount as the damage being done.
* PlayerPreferredPattern: Averted due to the experience system detailed above. If you keep using a mastered weapon, you're missing out on EXP and slowing your leveling to a crawl. You have to constantly switch equipment to continue leveling up.
* ThatOneAttack: The God-King's Fury attack can very well end a Bloodline then and there. It's tricky to parry, very difficult to dodge, and is capable of tearing through your entire health bar. It gets even worse in the final round when he starts using it every other attack pattern.
* ThatOneBoss: The God King is an intentional example of this trope. His lethal powers cause the entire storyline. He starts at level fifty when the player is level one. Every time the player beats him, he goes up another fifty levels.
** The Deathless Kings. The weakest of them is level 150.
** The sequel has a few of these, naturally, though the one that takes the cake is the Bog Giant, the tree trunk horror with the Vile Blade stuck in it that comes with the "Vault of Tears" expansion - thankfully, you can restart the fight if you die like a regular encounter. But it is horrifyingly fast for something so huge (you will need to get used to its speed to dodge and parry properly), has new attacks that can catch you off-guard, and when felled, it goes OneWingedAngel and transforms into the Moss Golem, a Monstrosity that will give you a hard time even if you mastered fighting the first form. Your reward? A sword that rivals the Infinity Blade in attack power.
* UnfortunateImplications: Oh, those poor wives/mothers/daughters of the Warrior character.
** Imagine being a wife, watching your beloved husband trudge off to certain doom in his mid-20s, to fail where dozens of generations of his fathers had also met their end. [[FridgeHorror Then having to tell your son to get ready for his turn]].
** Expanded upon in the novella where, at least in one case, it seems like the warriors only spend a month with their wives before going off to get revenge [[spoiler: or so everyone is brainwashed to believe.]]