Torbjörn

At the beggining of your upkeep, if there are no "Torbjorn's Turret" on the battlefield, create one. "Torbjorn Turret" is a 2/4 artifact creature token
with vigilance and reach.
{x}, {t}, sacrifice an artifact: Torbjorn deals {x} damage to all creatures. {x} can't be 4 or less.
{p/r}, {t}: Put a +1/+1 counter on target artifact.