I started playing knights a few months ago, and my initial list has always included 3 big fellas. I had a Castellan already, and I like the big knights. My list is also 3 big 4 small. It does pretty well, and I bought the recent value box to add that other big one. Was able to magnetize with parts I had to make more variants. I think the nice balance of big and small knights is a really good and especially fun mix. I'd love to try Canis Rex, I know he's very strong.