These codes can unlock various features, such as rare cards, special abilities, or even new gameplay modes
Sometimes you wont have Lathril in play, or a way to overrun with your creatures, but you will have enough power on the board to kill a player, thanks to the various buffs from your lords and the sheer number of elves in play
You can't know what decks will end up at the top of the metagame, but it's for certain that the overwhelming majority of them will be using dual lands
Dictate of Erebos, Martyr's Bond, and By Invitation Only are all solid choices in a Negan-led deck
3mv cards like Cultivate are often fantastic in decks with commanders that cost five or six mana since they greatly increase the chance of playing these cards ahead of schedule while providing additional benefit over their 2mv competitors