Ruthless Radrat

• WOTC Official Reminder Textofficial rules
  Menace — This creature can't be blocked except by two or more creatures.

• WWizards of the Coast2024-03-08
  Official Ruling
  You may pay the squad cost any number of times. You will create a token that is a copy of that permanent for each time you paid the squad cost. If you paid the squad cost multiple times, the tokens will all enter the battlefield simultaneously.
• WWizards of the Coast2024-03-08
  Official Ruling
  If, for some reason, the creature doesn’t have the squad ability when it’s on the battlefield, the ability won’t trigger, even if you’ve paid the squad cost one or more times.
• WWizards of the Coast2024-03-08
  Official Ruling
  If the spell is countered, the squad ability will not trigger, and no tokens will be created.
• WWizards of the Coast2024-03-08
  Official Ruling
  The tokens created by the squad ability aren’t “cast,” so any abilities that trigger when a spell is cast won’t trigger for the copies.
• WWizards of the Coast2024-03-08
  Official Ruling
  Once you announce that you’re casting Ruthless Radrat, no player may take actions until you’re done casting it. Notably, opponents can’t try to remove cards from your graveyard to stop you from paying Ruthless Radrat’s squad cost.
• WWizards of the Coast2024-03-08
  Official Ruling
  If the spell resolves but the creature with squad leaves the battlefield before its squad ability resolves, you’ll still create the token copies.

Rulings via Scryfall