How do?

Pondering my Kastellax pre-order, I've rather belatedly realised their Mechanicus Dreadnought equivalents in terms of role.

And like Wraithlords, they're Monstrous a Creatures rather than Walkers.

This of course makes them a bit more resilient than the often rather lack lustre Dreadnoughts, which to my mind never seem to punch their weight.

So what if all Dreadnoughts and equivalents were made Monstrous Creatures?