Tragedy Feaster

• WOTC Official Reminder Textofficial rules
  Ward — Whenever this permanent becomes the target of a spell or ability an opponent controls, counter it unless that player pays [cost].

• WWizards of the Coast2026-03-20
  Official Ruling
  Tragedy Feaster's infusion ability will trigger regardless of whether you've gained life this turn. As the ability resolves, it will check to see if you've gained life this turn. If you have, you won't sacrifice a permanent.

Rulings via Scryfall