Champion of the Cannon

When Champion of the Cannon enters the battlefield create 2 colorless artifact tokens
named Cannon Ball.
Sacrifice an artifact: Create X Cannon Ball
tokens where X is the converted mana cost of
that artifact.
{u/r},{t}: Sacrifice a Cannon Ball, Champion of
the Cannon does 2 damage to any target.
"Argh" -Saltwake pirate, probably