Cad Bane, Galactic Outlaw

Bounty Hunter (At the beginning of your upkeep,
put a bounty counter on target permanent an opponent controls.)
Whenever a permanent with a bounty counter on
it is put into a graveyard, draw a card. If that permanent is an artifact, create a Treasure token.
This ability triggers only once each turn.
"I'll take on any job, for the right price."