Even if you first pick black-red rare hybrid card like Ultimate Green Goblin, you could still comfortably draft blue-black, black-red, or red-green
One-time gambles like Wild Magic Surge just replace your entire board with limitless possibilities, and combat tricks like Antagonize can offer tons of extra power for cheap
Heres how good Nissa, Steward of Elements is: I momentarily (it was brief, but it happened) considered taking out Jace, the Mind Sculptor for it
Waiting until the last second to pump the team can turn an otherwise wimpy attack of five or six 3/3s and your commander into sudden triple damage with a pair of instant speed cantrips
Best Card in MTG History(?) While many would give this award to Black Lotus, the most expensive MTG card in history, there is a strong argument against it being the best