mtg arcades commander deck the Strategist M19] Arcades, the Strategist :

Mageta the Lion (S, Block) While Blinding Angel might have heralded the return of white-blue control decks, Mageta the Lion pushed them over the top

Enter Path to Exile, which is a very literal description of what this white instant does

Some sub-themes include: the synergy between Huey, Dewey, and Louie, Donald Duck's nephews from Ducktales

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

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

If that explored card is a land, you can take a land from your hand and put it into play tapped