Apprentice's Scarf

The Apprentice's Scarf is an accessory that increases the player's max number of sentries by one and increases minion damage by 10%. Neither of its bonuses stack with Squire's Shield, Huntress's Buckler or Monk's Belt. It is dropped by the Ogre during the Old One's Army event.

History
(In 1.4.1 a change was made where in multiplayer you get less aggro)

Écharpe d'apprenti 学徒围巾