Adding other ways to buff the tokens you make can be a fun way to make them hit harder and continue to grow your token army each turn with Rias ability
They are much higher variance than Sentinel, and while great cards, arent as essential as the rest of whats on the list especially since a good Sword of the Animist or Mask of Memory can fill those gaps quite nicely
(You can always play Special Guests cards and cards from The List in any format where they are already legal, such as Pioneer, Modern, or Commander.) Cards from The List are direct reprints featuring existing artwork and treatments (with the addition of a small Planeswalker symbol in the lower-left corner of the card), but Special Guests cards are reimagined in the style and aesthetics of the setechoing Ravnica's guilds and citizens with new borderless artwork
Out of these three, only Consultation is really noteworthy in terms of value
Ninjutsu is also self-bounce
This is another red sideboard staple, owing to its huge range of targets in Pauper