I dunno if anyone else has pointed this out.
>Black Shard is clearly a piece of The Knight's blade
>Has the "Slay Dark" ability letting you kill Titans and their spawn
>Logically their sword would have that same ability
>The Knight has a weapon that's probably some uber strong Titan slayer
>This is despite the fact The Knight presumably wants to summon Titans
What if The Knight isn't actually a villain but is trying to defy the prophecy in their own way by openning fountains to birth titans, specifically to kill them to GET STRONGER?