Karl, Proud Inventor

{r}: Create a colorless artifact token named Steam Pistol. It has '{1}{r}: Target Artificer gets +1/+0 until end of turn.'
{2}{u}: Create a colorless artifact token named Countermeasures. It has '{3}{u}: Target Artificer gains hexproof until end of turn.'
{4}{r}: Create a colorless artifact token named Steam Cannon. It has '{5}{r}: Steam Cannon deals 3 damage to target creature.'