They exist precisely because the full game is overwhelming if you jump in without a structured entry point
Alayna: I had to work repeatedly on the three colors in the middle to make sure they fit behind the Plains, and also really exemplified the epitome of their colors while still fitting all together
7: You get an emblem with "Instant and sorcery cards in your graveyard have retrace." (You may cast instant and sorcery cards from your graveyard by discarding a land card in addition to paying their other costs.) 1: Wrenn and Six deals 1 damage to any target
Both as a commander and in the 99, this isn't a card we want to slam onto the battlefield whenever we have the occasion to
For example, if you animate Infinite Guideline Station with Bello, Bard of the Brambles while it has fewer than 12 charge counters, it wont gain flying, and it wont gain its attack trigger
This should be enough protection for Teferi to be a fairly solid play