The Assassin character of Ocastudios' card game Attack the Tower (www.ocastudios.com/attack-the-tower). Both the game and the character were realeased by their authors as Public Domain.
兩個基本原則
Assassin、Attack the Tower、Ocastudios
刺客、攻擊塔、Ocastudios
資料來源：openclipart ( https://openclipart.org/ )