8. Seath the Scaleless (Dark Souls)
When you first meet Seath the Scaleless, he looks majestic. He’s a great white dragon encased in crystal. Your breath is taken away just from looking at how gorgeous the large arena is. And then you’re dead. Seath is the first boss in Dark Souls that actually requires you to die before you learn the method to fighting him properly. Big Hat Logan finds you in the Duke’s Archives and reveals to you that the Primordial Crystal is the source of his strength, and all you have to do is destroy it.
When you meet Seath again in the Crystal Caves, he is still invulnerable and all-powerful. But once you destroy the Crystal, you can hurt him like any other enemy. Seath’s crystal attacks are beautiful, and he makes for a memorable boss fight simply by virtue of having heard so much about him through the game’s lore and item descriptions. Here you have the traitor who turned his back on the dragons. And now, you get the satisfaction as the Chosen Undead of striking him down.