It lets you selectively reorder the top 3 cards of your deck while also having a free way to draw a card on another turn
With Take That!, Pete, Bad Guy gains an additional two strength whenever you play an action and using Whos Next?, this character can quest for four lore, rather than just two, if it has seven or more strength
Nyx Lotus in a mono (or sometimes two) color deck can tap for at least three mana, and should it stick around, it will probably help you keep casting your Commander for the rest of the game
These are great as a simple intro to playing the game
Moira and Teshar gives this deck more of an artifact reanimation direction you can explore as well, but with a slightly different selection of cards (you dont need the Phyrexians, for example)
This one does let you target locations, which is a nice benefit, as we have very few ways to do it right now