the final boss of Spiral Knights
is Basil
it makes sense
he is the sole crown sink of the game, and he only accepts crowns, which is a currency the clockwork inhabitants carry; the currency of which you murder them for
basically he is using the spiral knights to become the richest man in the clockworks
now that you discover the horrible truth, he wants you to die
~GodFather Waltz plays in the background~
Pff, Basil can't be the boss. He's an underling. A midboss at best. The planet is the real boss. And you can't win. It will crush you if you try to attack it in earnest. >O
You come to me and ask me to kill a man I do not know. Now I ask you...why should I kill this Tinkerzard?
And then you go down to fight him, and if you're flat broke he uses all sorts of crazy weapon attacks. However, if you have plenty of crowns to burn he'll only have some horrible, underpowered crap weapons to attack you with.

Part of me hopes that, when we do get to the core, we have a multi-phase final battle with Basil that, upon completion, causes the entire planet to implode. This would involve "defeating" Basil, at which point he remote-detonates several carefully placed explosives to cause the planet's implosion, which would result in a Chase/Timed Escape-type level where the floor is crumbling behind you while you must kill waves of enemies standing between you and our now-fleeing Basil, else you fall into the Clockworks and be consumed by it.
And of course, a climactic remix of Spiral Knight's main theme would be playing throughout this entire debacle.
It's only fitting.

Killing Basil should cause him to drop every recipe he never had when I needed it.
Because I just know he's got them, he's just being stingy.

You people think you can beat Basil? He has all those recipes... meaning he probably has every weapon in the game. Better still, maybe he's the one who makes recipes in the first place. You think he'd give you his real stash? The moment you try is the moment he pulls out the super nitro big angry shivermist toxic volt fiery graviton bomb with 0.0001 second charge time. Should you even last through that, he has his guns and swords ready for you...
..There will be a new recipe vendor, and he will only sell recipes for CE. Cue the tsunami of complaints.
Sources now or GTFO!
No, seriously where did you get this information.
Oh gawd, what should I do? *scared*
Anyways, going to buy recipes from him , brb lulz