Barbed Servitor

• WOTC Official Reminder Textofficial rules
  Indestructible — Effects that say "destroy" don't destroy this permanent. A creature with indestructible can't be destroyed by damage.

• WWizards of the Coast2024-02-02
  Official Ruling
  A creature can be dealt an amount of damage greater than its toughness. For example, if Barbed Servitor is dealt 3 damage, its last ability causes the target opponent to lose 3 life.
• WWizards of the Coast2024-02-02
  Official Ruling
  If a creature is already suspected, suspecting it again won't have any effect.
• WWizards of the Coast2024-02-02
  Official Ruling
  There's no limit to the number of creatures that can be suspected simultaneously. Suspecting a new creature doesn't cause other creatures to stop being suspected.
• WWizards of the Coast2024-02-02
  Official Ruling
  If a suspected creature loses all abilities, it will lose menace and "This creature can't block", but it won't stop being suspected.
• WWizards of the Coast2024-02-02
  Official Ruling
  If your life total is brought to 0 or less at the same time that Barbed Servitor is dealt damage, you lose the game before its last ability goes on the stack.
• WWizards of the Coast2024-02-02
  Official Ruling
  When an effect suspects a creature, it becomes suspected. It gains menace and "This creature can't block" for as long as it's suspected. It stays suspected until it leaves the battlefield or another effect causes it to no longer be suspected.
• WWizards of the Coast2024-02-02
  Official Ruling
  Being suspected isn't a copiable value. If a permanent becomes a copy of a suspected creature, it won't be suspected.

Rulings via Scryfall