eh slightly and slightly not. i think i will wait and see what others come up with before i can decide what to make or if i want to Also one more nit pik Calabanite lions are litterally warpspawns
@Grall_Stonefist & @BadDo9 You too miss the obvious chance that the rise of beastmasters could be very well an excuse for the Space Wolves to make Wolf Riders a common thing, without having to hide them from anyone or make them mythic at all. Along with that you could push that even harder and make Space Wolves long-term tame other stuff too like you even suggested at the end with all the sort of monsters running around on Fenris. So basically the Space Wolf should be a 'young' one (*cough* disguise *cough*) so that in reality he is like a ~300 year old wolf rider, but states he is like 110 or go figure.
Well, why not a Raptor with an Iron Hand? It wouldn't grow quite as large as a Tyrannosaurus Rex, but it'd still be almost huge, eventually.
I am thinking about it. Not that I have time for it..., but I have kind of an idea. How big can ravens get in a lorebended 40k universe?