The Knight is likely better, as First Strike tends to be superior to Vigilance in aggressive decks, and it puts the (not necessarily Basic) Plains onto the battlefield un tapped
At the beginning of combat, it creates a hasty token copy of itself
Omnath, Locus of All The best thing Omnath, Locus of All brings to the table is that it gives you an extra card each turn, and three extra mana depending on what you draw
2 Simba, Pride Protector Legendary - $18.15 Keeping your characters safe is an important part of your amber strategy, and Simba, Pride Protector does a great job at keeping your side of the board safe and sound after a round of challenges
You get a big bodied location that gives you a lot of lore plus the Heave Together Now ability is activated immediately and it costs you nothing
A Cloud, Ex-SOLDIER Commander deck focuses heavily on Equipment, putting them on creatures to gain powerful, potentially game-ending effects