Sojourner's Companion

• WOTC Official Reminder Textofficial rules
  Affinity — This spell costs less to cast for each [quality] you control.
• WOTC Official Reminder Textofficial rules
  Cycling — Cycling [cost] (Pay [cost], discard this card: Draw a card.)

• WWizards of the Coast2021-06-18
  Official Ruling
  Unlike the normal cycling ability, typecycling doesn't allow you to draw a card. Rather, it lets you search your library for a card with the type or types indicated by the ability name. For example, a card with basic landcycling lets you search for a basic land card, and a card with Wizardcycling lets you search for a Wizard card.
• WWizards of the Coast2021-06-18
  Official Ruling
  Typecycling is a form of cycling. Any ability that triggers on a card being cycled also triggers on a card being typecycled. Any ability that stops a cycling ability from being activated also stops a typecycling ability from being activated.

Rulings via Scryfall

• WO
  Wizards of the Coast2021-09-08

  Sojourner's Companion was banned in pauper on September 8, 2021. While Affinity was being kept in check by a small number of top decks, its win rate against many of the less represented decks was high. To open the metagame to more diversity, we're choosing to ban Sojourner's Companion. Banning Sojourner's Companion should lower the consistency and win rate of the deck without fundamentally changing the way it plays. Source: https://magic.wizards.com/en/news/news/september-8-2021-banned-and-restricted-announcement