Foriysian Interceptor

• WOTC Official Reminder Textofficial rules
  Flash — You may cast this spell any time you could cast an instant.
• WOTC Official Reminder Textofficial rules
  Defender — This creature can't attack.

• WWizards of the Coast2006-09-25
  Official Ruling
  The third ability normally lets Foriysian Interceptor block two creatures. If another effect also lets it block an additional creature, the effects are cumulative.
• WWizards of the Coast2006-09-25
  Official Ruling
  If an effect says Foriysian Interceptor can't block, then it can't block any creatures.

Rulings via Scryfall