Count As Knights (Using 40k Fluff)?

[Noctem Cultor]

Hey all,

 

Although im still working with my Night Lords Warband, I have started to want to give Knights a play to mix up my games. Now im going to cheep out and Proxy but I want to represent something else in the 40k Universe using Knight rules.

 

First thought was Massive Greater Daemons but to be honest im not a fan, does anyone with knowledge of the Knight Power Ranking (eg compare to a space etc) know of creatures or constructs that could go toe to toe with a Knight?

 

At the moment my first thought was Giant Ice Rock Monster as my groups game board is snow so im not afraid to end up with a Godzilla like creature down the line.

[Battybattybats]

Well in the Imperial knight companion there's the giant stone-elemental like 'Golems' that were sentient mobile plants grown around and through bodies of stone that house Cadmus fought to extinction http://warhammer40k.wikia.com/wiki/House_Cadmus

Then there's the lava-nesting glowing-eyed 'Dragons' http://warhammer40k.wikia.com/wiki/House_Griffith that house Griffith fought to extinction

[Noctem Cultor]

Perfect that's the kind of thing I was after, plus the links with the knights solidifies my ideas. Thanks alot for that.