Kenneth, Master Gunslinger

First Strike, Haste, Mercenary 3 (Any opponent
can pay the additional cost as mana on their turn to
give you an amount of Treasure tokens, and gains
control of this creature until the end of their turn.
Untap it. It gains haste. If an opponent gains control
of this creature this way, they cannot be sacrificed or
made to attack you.)
"Sometimes, the only thing a man is good at is
killing."
- Frank Hammer