A new spin on Champions, The Master Thief

An Idea for a champion could be a Master Thief who focuses his attack power based on his movement speed with an attack speed support ability, an ability that works like final fantasy's 'mug' ability which deals physical damage to a single target and steals additional gold as a passive the gold increasing as the skill is upgraded. Finally, an ultimate which has an aoe and deals tons of damage which a large cooldown.