Some sub-themes include: the synergy between Huey, Dewey, and Louie, Donald Duck's nephews from Ducktales
While none of the competitive success has to do with it being a dinosaur, you could undoubtedly satisfy the companion requirement with a dino build since they have a naturally high mana value for the most part
Kjeldoran Skycaptain is the other giant-bird rider, while the Kjeldoran Knight 's flavour text wants us to know that even the ground forces aren't discriminated against
Now, you can't redirect a Counterspell to counter itself after your spell resolves
This is another over-tuned 3-drop that just embarrasses other creatures at the same point on the curve, and it can connect in combat to basically draw you a card with selection each turn
As for Runehorn Hellkite, I've never met a Wheel of Fortune I didn't like, and even though this one is pretty expensive at six mana, it also generates random value from the graveyard if you discard it to something like Survival of the Fittest and is uncounterable and instant speed