Frasier says, "The vibe is to understand them as brothers and see how important that is to their family." Donatello and Leonardo are the more serious and studious brothers, so you'll see them on a team-up card, while Raphael and Michelangelo are the troublemakers, and that's reflected in their team-up card, too
You are very free to look at different directions and strategies that work with your commander, but that aren't made obvious by the commander's keywords or abilities
Fallout deck, then you've already got a copy of the latter
On the surface, you get a two-mana three-power Trampler
The colors of the preconstructed Commander deck are Green, Blue, and Red
Primeval Titan also has a near and dear connection to me, as Valakut Ramp was my first competitive Standard deck back in mid-2010