Sporeweb Weaver

• WOTC Official Reminder Textofficial rules
  Hexproof — This permanent can't be the target of spells or abilities your opponents control.

• WWizards of the Coast2020-06-23
  Official Ruling
  Hexproof from blue means that Sporeweb Weaver can't be the target of blue spells your opponents control or abilities your opponents control of blue sources.
• WWizards of the Coast2020-06-23
  Official Ruling
  Sporeweb Weaver's last ability triggers even if the damage causes it to die.
• WWizards of the Coast2020-06-23
  Official Ruling
  If your life total is brought to 0 or less at the same time that Sporeweb Weaver is dealt damage, you lose the game before the ability goes on the stack.
• WWizards of the Coast2020-06-23
  Official Ruling
  Sporeweb Weaver's last ability triggers just once, no matter how many things deal how much damage to it at once (most likely because two or more creatures blocked it).

Rulings via Scryfall