Tiefling Runekeeper

When Tiefling Runekeeper enters the battlefield, create three Red Rune Artifacts with
' {r} {t}, Sacrifice this artifact: Deal damage to target creature or player equal to the amount of runes you control'.
{r}{r}{t}; Create a Red Rune Artifact with '{r} {t}, Sacrifice this artifact: Deal damage to target creature or player equal to the amount of runes you control'.